Answers
Based on the attached picture, at exactly 20 seconds, the volume of the bubble column produced from the action of catalase on hydrogen peroxide is 2.5 mL.
What is the reaction between catalase and hydrogen peroxide?Catalase is an enzyme found in living organisms that catalyzes the breakdown of hydrogen peroxide into water and oxygen gas. The reaction between catalase and hydrogen peroxide can be written as follows:
2 H₂O₂ → 2 H₂O + O₂
When hydrogen peroxide is added to a solution containing catalase, the reaction begins immediately and oxygen gas is rapidly produced, creating bubbles in the solution. The more catalase present in the solution, the faster the rate of the reaction, and the more oxygen gas is produced. The reaction between catalase and hydrogen peroxide is a common laboratory demonstration of enzyme activity and is also important in many biological processes.
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Related Questions
You hear about a new amazing fertilizer called SuperGro. The company selling it claims that using this fertilizer will double your tomato harvest! Sounds great but as a skeptical consumer you ask for a sample so that you can conduct an experiment in your garden before you buy a big bag of this fertilizer.
Use your knowledge of the scientific method to:
state a good hypothesis for your fertilizer experiment
describe the experiment you would conduct
identify the control and experimental groups/treatments
identify the dependent and independent variables
name two control variables
make up hypothetical results
state a conclusion
Answers
Experiment: The experiment would involve growing two tomato plants under identical conditions, with one plant treated with SuperGro fertilizer and the other plant not treated with the fertilizer. Both plants would receive the same amount of water and sunlight, and would be grown in the same type of soil. The plants would be monitored and data collected on their growth and yield over a specified period of time.
Control group: The tomato plant that is not treated with SuperGro fertilizer.
Experimental group: The tomato plant that is treated with SuperGro fertilizer.
Dependent variable: The yield of tomatoes from each plant.
Independent variable: The use of SuperGro fertilizer.
Control variables: Amount of water and sunlight each plant receives.
Hypothetical results: The tomato plant treated with SuperGro fertilizer produces twice as many tomatoes as the plant that is not treated with the fertilizer.
Conclusion: Based on the results of the experiment, it can be concluded that SuperGro fertilizer is effective in increasing the yield of tomato plants.
How fast does a stream have to move to carry the smallest cobbles
Answers
Sand, slit, clay, pebbles, and cobbles 10. The size of the sediment particles being transported by a stream, which is moving at a speed of 250 millimeters per second, ranges from cobbles to clay.
What is the required stream velocity at a minimum?The minimum flow velocity required to erode a particle decreases with increasing particle size, with a minimum flow velocity of 30 centimetres per second required to erode a 0.5 millimetre particle being the smallest.
What do stones in a stream mean?The term is frequently used to describe any kind of rounded rock, such as basalt, granite, gneiss, sandstone, etc., that has been moulded into an oblate or prolate spheroid. In mountain streams and as glacial till, cobbles are frequent.
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why is winter wheat a good study species for drought treatment experiment?
Answers
Winter wheat is a good model to study in drought treatment experiments because it is a crop generally resistant to abiotic factors.
What is a model organism in experimental procedures?A model organism in experimental procedures is a type of species that result ideal to be used in order to understand a particular outcome such as in this case how drought may affect cereal crops during the winter.
Therefore, with this data, we can see that model organisms in experimental procedures are used when they exhibit certain genetic and phenotypic features.
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which hereditary changes survive most of species
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Hereditary changes that provide an advantage in survival and reproduction tend to survive and spread through a population over time.
In the context of evolution, this is known as natural selection. The traits that confer an advantage to an organism in its environment are more likely to be passed on to the next generation and become more prevalent in the population over time.
Some hereditary changes that are advantageous include:
Physical adaptations, such as camouflage or protective features like sharp claws or thorns, which can help an organism avoid predators or capture prey
Behavioral adaptations, such as communication or cooperation among members of a group, which can help an organism survive and reproduce
Genetic mutations that provide resistance to diseases or allow an organism to thrive in a particular environment.
These types of changes can help an organism or species adapt to changing conditions in its environment and increase its chances of survival and reproduction, thus increasing the likelihood of passing on these beneficial traits to future generations.
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PLEASE HELP FAST
Describe a food chain in detail. Use the teacher notes to help you. Must be 2-4 sentences with a complete description of a food chain and the types of organisms in that food chain. Please check spelling and grammar before submission.
Answers
Explained answer:
A food chain describes the flow of energy from one organism to another in an ecosystem. For example, in a grassland ecosystem, a food chain could be as follows: grass is eaten by a rabbit, which is eaten by a fox. In this food chain, the grass is the producer, the rabbit is the primary consumer, and the fox is the secondary consumer. As the fox eats the rabbit, it obtains the energy that the rabbit got from the grass. This energy flow is what sustains the ecosystem.
Explain which cells,tissues,or organs should be modified to lead to successful photosynthesis in animals or humans discuss how these compare to a plants leaves
Answers
Only cells with chloroplasts—plant cells and algal (protist) cells—can perform photosynthesis. Animal cells and fungal cells do not have chloroplasts and, therefore, cannot photosynthesize
8 (22) How did Hutton come to view Earth?
10 (24) How was Hutton's theory received by his peers?
11. (25) What was Hutton's controversial view of granite?
-12 (30) What is the significance of the location where the grante
13.35) What is the significance of the rocks at Siccar Point?
14. (39) What was Hutton's big insight about time?
15. (42) Why was Kelvin convinced that Earth had a beginning?
16. (47) What was Kelvin's estimate for the age of Earth?
17. (48) What two things did Kelvin not know that caused his estimate to be off?
18. (55) What crystals do they look for in the granite?
19. What is the actual age of Earth?
Answers
Hutton viewed Earth as a dynamic system that constantly changes through natural processes such as erosion and uplift.
What was Hutton's view of the Earth?James Hutton co-created the idea of uniformitarianism with Charles Lyell. He thought that gradual processes over a long period of time created Earth's landscapes, such as the mountains and oceans.
Hutton's theory was initially met with skepticism and criticism from his peers, as it challenged prevailing beliefs that Earth was relatively young and static.
Hutton believed that granite was not created in a single event, but rather formed slowly over time through the cooling and solidification of molten rock deep within Earth's crust.
The location where the granite formed, according to Hutton, was significant because it provided evidence that Earth had a long history of geological activity, as the granite was exposed and eroded over time.
The rocks at Siccar Point, which show layers of rock that have been folded and tilted over millions of years, provided evidence to Hutton that Earth was much older than previously believed.
Hutton's big insight about time was that the processes that shape Earth are slow and gradual, taking place over millions of years, rather than sudden and catastrophic.
Kelvin was convinced that Earth had a beginning because he believed that heat was gradually being lost from Earth, and that if Earth were infinitely old, it would have completely cooled by now.
Kelvin estimated the age of Earth to be between 20 and 400 million years old.
Kelvin did not know about the process of radioactive decay, which can provide a source of heat to Earth's interior, and he did not know about the existence of convection currents in Earth's mantle, which can also generate heat.
Geologists look for zircon crystals in the granite, as they contain small amounts of uranium and lead that can be used to determine the age of the rock.
The actual age of Earth is estimated to be around 4.54 billion years old, based on the age of the oldest known rocks and the decay rates of radioactive isotopes.
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8. Compare and contrast DNA and RNA.
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Comparison
DNA
RNA
Full Name
Deoxyribonucleic Acid
Ribonucleic Acid
Function
DNA replicates and stores genetic information. It is a blueprint for all genetic information contained within an organism.
RNA converts the genetic information contained within DNA to a format used to build proteins, and then moves it to ribosomal protein factories.
Structure
DNA consists of two strands, arranged in a double helix. These strands are made up of subunits called nucleotides. Each nucleotide contains a phosphate, a 5-carbon sugar molecule and a nitrogenous base.
RNA only has one strand, but like DNA, is made up of nucleotides. RNA strands are shorter than DNA strands. RNA sometimes forms a secondary double helix structure, but only intermittently.
Length
DNA is a much longer polymer than RNA. A chromosome, for example, is a single, long DNA molecule, which would be several centimetres in length when unravelled.
RNA molecules are variable in length, but much shorter than long DNA polymers. A large RNA molecule might only be a few thousand base pairs long.
Sugar
The sugar in DNA is deoxyribose, which contains one less hydroxyl group than RNA’s ribose.
RNA contains ribose sugar molecules, without the hydroxyl modifications of deoxyribose.
Bases
The bases in DNA are Adenine (‘A’), Thymine (‘T’), Guanine (‘G’) and Cytosine (‘C’).
RNA shares Adenine (‘A’), Guanine (‘G’) and Cytosine (‘C’) with DNA, but contains Uracil (‘U’) rather than Thymine.
Base Pairs
Adenine and Thymine pair (A-T)
Cytosine and Guanine pair (C-G)
Adenine and Uracil pair (A-U)
Cytosine and Guanine pair (C-G)
Location
DNA is found in the nucleus, with a small amount of DNA also present in mitochondria.
RNA forms in the nucleolus, and then moves to specialised regions of the cytoplasm depending on the type of RNA formed.
Reactivity Due to its deoxyribose sugar, which contains one less oxygen-containing hydroxyl group, DNA is a more stable molecule than RNA, which is useful for a molecule which has the task of keeping genetic information safe. RNA, containing a ribose sugar, is more reactive than DNA and is not stable in alkaline conditions. RNA’s larger helical grooves mean it is more easily subject to attack by enzymes.
Ultraviolet (UV) Sensitivity DNA is vulnerable to damage by ultraviolet light. RNA is more resistant to damage from UV light than DNA.
PLSS GIVE BRAINLIESTT(TYY)
The stomach mucosa is thickened due to the abundance of
Answers
The quantity of gastric glands, which release pepsinogen, hydrochloric acid, and other digesting enzymes, causes the stomach mucosa to thicken.
What causes stomach mucosa?When the stomach lining is damaged or weakened, gastropathy results (mucosa). There are numerous potential causes of the problem, including: Alcohol abuse: Extended drinking can irritate and harm the lining of the stomach. Autoimmune disease: In certain patients, the immune system attacks the healthy cells that line the stomach.
Why is the mucosa layer in the stomach so thick?The gastric mucosa has two main functions: to shield the stomach wall from acid and digestive enzymes and to lubricate the food masses in the stomach and allow movement inside the stomach.
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Question:
The stomach mucosa is thickened due to the abundance of _________
The building is being help up by cells, how?
Answers
The smallest unit of life, cells serve as the basic building blocks for all living things. Living organisms' growth, development, and functionality are all governed by their cells.
How cells are crucial in the building blocks of all living organisms?They may carry out a range of tasks because they are made up of several organelles, including the nucleus, mitochondria, endoplasmic reticulum, the Golgi apparatus, and other parts. The synthesis of proteins and other molecules necessary for the operation of the organism, as well as the creation of energy and the storage of nutrients, all take place within the cells. Moreover, cells enable communication between various components of the organism, allowing it to react to its surroundings.
Why do mitochondria exist?Eukaryotic cells contain organelles called mitochondria, which are the sites of cellular respiration and generate ATP as a type of energy. Mitochondria are organelles found in the cells of eukaryotes, which are organisms whose cells contain a nucleus and other organelles surrounded by a membrane. Mitochondria are the powerhouses of the cell, responsible for producing energy in the form of adenosine triphosphate (ATP). They do this through a process called cellular respiration, in which glucose is broken down with oxygen to produce ATP. ATP is then used to power a variety of cellular processes such as muscle contraction, protein synthesis, and cell signaling. In addition to producing energy, mitochondria also play a role in other cellular processes such as calcium signaling, apoptosis, and cell metabolism.
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. Maja puts a hockey puck onto ice. After a while the temperature of the hockey puck decreases. What happens to the molecules of the hockey puck when the temperature of the puck decreases?
a. The hockey puck loses heat molecules.
b. The energy of the molecules in the hockey puck decreases.
c. The energy of the molecules in the hockey puck increases.
d. The cold energy of the molecules in the hockey puck increases.
Answers
Answer:
b. The energy of the molecules in the hockey puck decreases.
When the temperature of an object decreases, it means that the average kinetic energy of the molecules in the object decreases. This happens because the molecules lose energy in the form of heat. So, option b is the correct answer.
Explanation:
unlike estrogen, progesterone inhibit FSH and LH. a)true b)false
Answers
The statement is true.
Explanation:
Progesterone inhibits the secretion of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the pituitary gland. This is one of the mechanisms by which progesterone helps to regulate the menstrual cycle and maintain pregnancy.
In contrast, estrogen stimulates the secretion of FSH and LH during the follicular phase of the menstrual cycle, which leads to ovulation.
Question #5
Which complex pattern of genetics describes a blended expression of two alleles?
Linear progression
Codominance
Incomplete dominance
Dominance
Answers
Incomplete dominance describes a complex pattern of genetics that results in a blended expression of two alleles.
What is Codominance?
Codominance is a type of genetic inheritance where both alleles of a gene pair are fully expressed in the phenotype of a heterozygous individual. This means that neither allele is dominant or recessive and both traits are expressed simultaneously without blending together.
In this pattern, neither allele is completely dominant, and the heterozygous phenotype is an intermediate blend of the two homozygous phenotypes. For example, in a flower with red and white alleles, a heterozygous individual with one red allele and one white allele may express a phenotype that is pink, a blend of the two colors. This is in contrast to codominance, where both alleles are expressed equally, or dominance, where one allele is completely dominant over the other.
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Chris Lowe bought a 32-ounce jar of jam costing $3.69 and a
28-ounce jar of peanut butter costing $3.79. He used a $0.95 coupon that was valid only if he purchased both items.
Answers
The scattering of Jews around the world is called the
A) Sephardim.
B) Diaspora.
C) Ashkenzaim.
D) Rebellion.
Answers
Answer:
Jewish diaspora so its B
Explanation:
hope it helps
LOW ENERGY 5 10 15 20 25 HIGH ENERGY 25 5 Top Bar of Chocolate 25 5 25 5 25 5 25 5 25 5 25 5 25 Bottom Bar of Chocolate 25 5
11. A chocolate maker is going to stack two bars of chocolate. The bars of chocolate are the same size and have the same number of molecules. The diagram above shows the chocolate bars now, before they touch each other. Use the information in the diagram to answer the question. How does the temperature of the top chocolate bar compare with the temperature of the bottom chocolate bar now, and what will happen after the bars have been touching for a while?
a. Before the bars touch, the two bars are different temperatures. Once the bars are touching, both kinetic energy and cold energy will transfer between the molecules in the two bars until both bars reach the same temperature, which will be in between their starting temperatures.
b. Before the bars touch, the top bar is cooler than the bottom bar. Once the bars are touching, the bottom bar will transfer kinetic energy to the molecules in the cooler top bar until both bars reach the same temperature, which will be in between their starting temperatures.
c. Before the bars touch, the top bar is hotter than the bottom bar. Once the bars are touching, the top bar will transfer kinetic energy to the molecules in the cooler bottom bar until both bars reach the same temperature, which will be in between their starting temperatures.
d. Before the bars touch, the top bar is hotter than the bottom bar. Once the bars are touching, the cooler bottom bar will gain kinetic energy until the molecules of both bars have an energy of 25, because hotter things increase the temperature of cooler things.
Answers
Answer:
b. Before the bars touch, the top bar is cooler than the bottom bar. Once the bars are touching, the bottom bar will transfer kinetic energy to the molecules in the cooler top bar until both bars reach the same temperature, which will be in between their starting temperatures.
Explanation:
How do scientists think Earth's orbit relates to an Ice Age? (2 pol
6. Weathering is the process of rock decomposition.
A. What are four different types of chemical weathering? (4 points)
B. How does each type of weathering break down rocks? (4 points)
Answers
Answer:
Scientists think Earth's orbit relates to an Ice Age because the shape of Earth's orbit changes over time. When Earth's orbit becomes more elliptical, it causes more variation in the amount of sunlight Earth receives during different parts of the year. This variation can cause changes in climate, which may lead to an Ice Age.
Types of chemical weathering:
Hydrolysis: water reacts with minerals in the rock to create new minerals that are more susceptible to further weathering.
Oxidation: oxygen reacts with minerals in the rock to form oxides and hydroxides, which can weaken the rock structure.
Carbonation: carbon dioxide reacts with water to form carbonic acid, which can dissolve minerals in the rock, especially those containing calcium.
Acid rain: rainwater that contains pollutants like sulfur dioxide and nitrogen oxides can become acidic and corrode the rock surface.
The above-mentioned types of weathering break down rocks as follows:
Hydrolysis: water breaks down minerals in the rock by reacting with them and creating new minerals.
Oxidation: oxygen reacts with minerals in the rock to create new minerals that are weaker and more susceptible to further weathering.
Carbonation: carbonic acid dissolves minerals in the rock, particularly those containing calcium, leaving the rock structure weaker.
Acid rain: the acidic rainwater reacts with minerals in the rock, dissolving them and weakening the rock structure.
Explanation:
Attachment theory
Are avoidants not really into intimacy and stuff?
Answers
Answer:
Avoidant individuals do not seek proximity and intimacy, avoid the display of emotions, and appear distant and cold. People who have this attachment style are less likely to fall in love, and they don't seem to believe in it. They fear intimacy and tend to be less involved in relationships.
Explanation:
Which phrase includes a subordinating conjunction? *
and you will be happy
because I was so hungry
D
but sometimes it is cold out
it is the best day
Answers
The phrase "because I was so hungry" includes a subordinating conjunction.
What is a subordinating conjunction?A subordinating conjunction is a type of conjunction that connects a subordinate (dependent) clause to a main (independent) clause. It introduces a dependent clause and indicates the nature of the relationship between the two clauses.
Why does the phrase "because I was so hungry" include a subordinating conjunction?The phrase "because I was so hungry" includes the subordinating conjunction "because," which introduces a dependent clause ("I was so hungry") that is subordinate to the main clause ("you will be happy"). The subordinating conjunction indicates the cause-effect relationship between the two clauses.
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A nurse is checking the pulse oximetry of a client who is on 2 liters of oxygen by nasal cannula. The finger probe is showing 89% oxygen saturation. List three (3) reasons the pulse oximetry may register a low reading
Answers
Here are three potential explanations Pulse oximetry readings may be low due to poor peripheral circulation, improper probe positioning, and equipment malfunction.
What pulse oximetry result necessitates notifying the nurse?The proper way to assess SpO2 levels with a pulse oximeter and the acceptable range should be known to nurses. A probe is positioned on the patient's finger, toe, or ear lobe when using a pulse oximeter to detect SpO2 levels.
What are the pulse oximeter's two most crucial readings?Your pulse rate and oxygen saturation are the two key readings on a pulse oximeter. Infrared light is used in these measurements to measure your blood's oxygen saturation levels, as described by doctors.
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the diagram shows the life cycle of a pine tree what happens during stage 2 quick due today
Answers
A seed that includes an embryo grows into a young pine tree, which is the stage designated as 6. The right answer is D.
A plant zygote is what?The process that takes place after an ovule has been fertilised to create a fully developed plant embryo is known as plant embryogenesis. Following dormancy and germination, this period in the plant's life cycle is crucial.
What is another name for a plant embryo?The portion of a seed or bud that has the plant's roots, stem, and leaves in their early stages is called the plant embryo, also referred to as the seed embryo. An embryo grows and is typically enclosed within a seed or bud after an adult plant that has been fertilised has flowered.
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Write the number of offspring plants with each phenotype in the Offspring Phenotype columns. Also, make sure you have run enough trials that you can both determine the genotype of each parent plant and produce yellow and white-flowered plants.
Summarize your work on the next page.
Answers
If you could provide more details about the experiment, I would be happy to help you with your analysis and summary.
Lab: Interdependence of Organisms
Assignment: Lab Report
Edge2020 please help
Answers
Using Hypothetical scenario, the Lab report on Interdependence of Organisms is given below. The purpose of this lab was to investigate the interdependence of organisms within an ecosystem.
What is the Interdependence of Organisms?Introduction:
In particular, we sought to examine the relationship between plants and herbivores, as well as the impact of predator-prey dynamics on the overall health of the ecosystem. To do this, we conducted a series of experiments that measured plant growth and herbivore populations in the presence and absence of predators.Methods:
We set up three experimental conditions: one with only plants, one with plants and herbivores, and one with plants, herbivores, and predators. Each experimental condition was replicated three times. In each replicate, we measured the growth of the plants and the population of the herbivores and predators over a period of three weeks.Results:
In the control group (plants only), we observed consistent and steady growth of the plants over the three-week period. In the second experimental condition (plants and herbivores), we observed a significant reduction in plant growth due to herbivory. The herbivore population also increased over time, as expected. In the third experimental condition (plants, herbivores, and predators), we observed a decrease in herbivore population due to predation. This, in turn, led to increased plant growth.Discussion:
Our results demonstrate the complex interdependence of organisms within an ecosystem. The presence of herbivores can have a significant impact on plant growth, as they consume plant material and reduce overall biomass. However, the presence of predators can help to control herbivore populations, which can ultimately lead to increased plant growth. These findings highlight the importance of predator-prey dynamics in maintaining a healthy and balanced ecosystem.Conclusion:
In conclusion, our experiments demonstrate the importance of understanding the interdependence of organisms within an ecosystem. Through our investigations of plant-herbivore-predator dynamics, we have shown that the health and stability of an ecosystem depend on the delicate balance of interactions between different species. Further research is needed to fully understand the complexity of these relationships and their implications for conservation and management of ecosystems.Read more about Organisms Interdependence here:
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according to the clasp gram , which organisms are in the smallest clads with birds
Answers
Answer:
please post photo of graph
Explanation:
What is the best way to find out if the food you are eating is healthy for you?
Answers
Answer:
1) Read the ingredient list.
2) Look at how long the ingredient list is.
3) Pay attention to types of fats.
4) Look for "100%"
5) Consider convenience.
6) Look at the expiration date.
PLEASE MARK AS BRAINLIESTexplain situation and dispostional cause of behavior in your own words develop a scenario. what would would be the situational cause of the person's behavior ? what would be the dispostional cause of the person's behavior
Answers
Answer:
Hi
Here your answer
a person's usual temperament or frame of mind. a natural or acquired tendency, inclination, or habit in a person or thing. another word for disposal (def
Which of the following did not happen to Jews after AD 70?
A) They were killed.
B) They became Roman slaves.
C) They remained in Jerusalem.
D) They moved to other parts of the Roman Empire.
Answers
Answer B
Explanation:
There are 5 Gyres on Earth. However, one of these Gyres are incorrect; meaning the energy levels are inaccurate
determine which one is wrong and explain why.
Answers
The North Atlantic, South Atlantic, North Pacific, South Pacific, and Indian gyres are the five largest gyres in the seas.
What is gyre?A gyre is a significant network of circling ocean currents. It is defined by a spiral or circular motion or form, which is restricted by the continents that surround the three ocean basins and is principally caused by the global wind system. The Atlantic, Pacific, and Indian Oceans are home to the three largest ocean gyres, which total five.
There is no evidence that any of these gyres are wrong or have inaccurate energy levels, according to the search results that were provided. Thus, it is impossible to identify which is incorrect and justify why. It is crucial to remember that ocean currents and gyres are intricate systems that are influenced by a variety of variables, including wind patterns, variations in temperature, and salinity gradients . These elements as well as other environmental circumstances can affect the energy levels of these systems. Ocean currents and gyres are studied by scientists using a variety of techniques, including satellite observations and oceanographic surveys.
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Based on his pea-plant data, which three conclusions did mendel reach
Answers
Recessive alleles are hidden by dominant alleles. During reproduction, parents transmit some sort of element to their offspring. An each gene's alleles are inherited separately from one another.
What did Mendel conclude from his research with peas?Mendel presented the findings of his research with around 30,000 pea plants to the neighbourhood Natural History Society in 1865. He proved that qualities are faithfully passed on from parents to children in dominant and recessive patterns, regardless of other traits.
What is Mendel's law of inheritance's conclusion?Mendel came to the conclusion that there is no correlation between distinct qualities; they are all inherited independently of one another. This indicates that the inheritance patterns of one feature will not alter those of another.
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Which statement is supported by this cladogram?
Answers
Answer:
Ans.
The given diagram represents a cladogram, which is used to show evolutionary relationships between various organisms or species.
The intersection points between the lines show the common ancestors, which evolved into different organisms at the end of the branches, as A, B, C, D.
The first branch end (A) represents that most primitive organism, while the last branch end (D) represents the most recent organism.
Thus, the correct answer is option). 'organism A is the most primitive organism.'
Explanation: