Answer:
Explanation:
An archegonium (pl: archegonia), from the ancient Greek ἀρχή ("beginning") and γόνος ("offspring"), is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete. The corresponding male organ is called the antheridium.
Please help! Multiple choice question.
Answer: A is the correct answer
Hope this helps :)
11. What occurs during the citric acid cycle?
a.
the formation of ATP
b. the release of carbon dioxide
c. the formation of FADH2
d. all of the above
Answer:
D. All of the above
End products of citric acid cycle: two GTP, six NADH, two FADH2, and four CO2
what energy carrying molecule is created when the chemical bonds of glucose are broken
By oxidizing glucose and other dietary molecules in a step-by-step manner, ATP and NADH are produced as chemical energy.
What is ATP?
A vital "energy molecule" present in all living things is adenosine 5′-triphosphate, also known as ATP and typically written without the 5′-. In particular, it is a coenzyme that transfers energy to cells by releasing its phosphate groups when it interacts with enzymes like ATP triphosphatase.
By adding a phosphate group to another molecule, ATP can drive biological operations (a process called phosphorylation). Special enzymes are responsible for carrying out this transfer, which connects the cellular processes that need energy to the release of energy from ATP.
A variety of cellular functions, such as ion transport, muscular contraction, the transmission of nerve impulses, substrate phosphorylation, and chemical synthesis, all require energy and hence use ATP. A large demand for ATP is generated not just by these processes but also by others.
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true or false? local biogeochemical cycles are isolated within their particular ecosystem and all ions and molecules remain in that ecosystem permanently.
Which rock is an example of a chemical sedimentary rock?
-
a: coal
b: iron ore
c: shale
d: sandstone
Answer:
I think none of them since so far lime stone is the most know example of chemical sedimentary rock.
The current human population growth rate is 1.12% per year. At this rate, how many years will it take for our population to double in size?
Answer:
62.5
Explanation:
The solution for doubling time is 70/(current % growth rate)
pls answer these 2 questions
Answer:
A1, they use one minute for each experiment to give them time collect and record the data so it may be saved, thus being their dependent variable
A2 "As the distance between the light and water plant increases, the number of gas bubbles decreases.
Explanation:
I pretty much put in the awnser
in the odorant cells of mammals, specific odorants are detected by binding to ________.
Answer:
protein-coupled receptors.
please help need answer.
Answer:
Non-use of drugs:
1. A teen is with family and friends.
2. A teen is a healthy student and athlete
3. A teen is focused and living life free and happy.
Use of drugs:
1. A teen doesn't socialize and doesn't around too many people due to social anxiety caused by the use of drugs.
2. A teen has health problems in his liver and kidney due to the abuse of drugs and is not able to play any sports due to this permanent health condition.
3. A teen is in jail due to being caught in possession of drugs and failing a drug test and being unhappy with anxiety and addiction.
The suncoast tree of northwest Africa is known for 2 traits that are said to show simple dominance. The 2 traits are height and bark color. In height, tall is dominant to short, and in bark color blue is dominant to purple. What would the genotypes be of a suncoast tree that is pure bred purple and tall and a suncoast tree that is heterozygous for both traits?
A. bbTT X BbTt
B. BBtt X BBTT
C. bbtt X bbtt
D. BbTt X BbTt
The genotypes would be bbTT X BbTt
Assuming that bark color is represented by B (b) allele and height is represented by T (t) allele.
Since the traits show simple dominance: blue (B) of dominant over purple (b) and tall (T) is dominant over short (t)
The genotype of a tree that is purebred purple (bb) and tall (TT) would be bbTTThe genotype of a tree that is heterozygous for both trait would be BbTtThus, the cross would be bbTT x BbTtMore on genotypes can be found here: https://brainly.com/question/20730322?referrer=searchResults
An organism that reproduces sexually has a diploid number of 30. How many
chromosomes will a gamete of this organism have?
Answer:
Gamete of organism has a haploid number of chromosomes.
2n = 30
n = 15
A diploid cell containing 30 chromosomes will result in 15 chromosomes in each of the 4 daughter cells after meiosis occurs.
After first nuclear and cellular division (Meiosis I), each daughter cell will only have 15 chromosomes as homologous chromosomes are broken apart at Anaphase I of meiosis I. Chromosomal number is halved. After the second nuclear and cellular division (Meiosis II), each daughter cell will also have 15 chromosomes. This time, instead of the chromosomal number being halved, their chromosomal contents are halved. Sister chromatids are separated at Anaphase II of Meiosis II, resulting in daughter chromosomes each.
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Explanation:
agonists generally _______ activity at the synapse while antagonists generally ______ activity at the synapse.
Agonists activate the receptor thereby increasing activity at the synapse while antagonists generally prevent agonists from activating the receptors thereby decreasing activity at the synapse.
An agonist is the component that has the ability to increase the activity carried out by another substance.The agonists work from their faculty of coupling to a cell-type receptor, in this way, they manage to generate a certain action in the cell.The antagonists are the compounds that cause the opposite when they bind to the receptor, they cause a blockade by decreasing the activation of a synaptic receptor.Therefore, we can conclude that agonists are compounds capable of increasing the action of synapse and blockers (antagonists) decrease activity at the synapse.
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An organism in its niche within an ecosystem is similar to?
A: a baseball player in his position on the baseball team.
B: the umpire not on a team.
C: the audience in the stands of a game.
D: the opposing team at a baseball game.
An organism in its niche within an ecosystem is similar to a baseball player in his position on the baseball team.
NICHE:Niche in biology refers to the specific role or position of an organism in its ecosystem or habitat.
The niche of an organism is specific or particular to that organism and this enables it to adapt and survive in its environment.
This explanation shows that niche can be likened to a baseball player in his specific position on the baseball team.
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Answer: A: a baseball player in his position on the baseball team.
reactants and products of photosynthesis
Explanation:
During photosynthesis, light energy converts carbon dioxide and water (the reactants) into glucose and oxygen (the products).
Which process occurs at location W? precipitation evaporation condensation transpiration.
Answer:
Precipitation
Explanation:
If it's the graph that I am thinking of, then it is precipitation. This is where raining occurs in he picture.
The biogeochemical cycle where the water circulates from the atmosphere to the Earth surface in a continuous motion is called the water or hydrological cycle.
The process that occurs at location W is:
Option A. Precipitation
The water cycle can be explained as:
The water cycle has four main components that are evaporation. condensation, precipitation and runoff.When an atmospheric substance falls on the ground in the form of rain, snow hails etc. are called precipitation.When the water from surfaces turns into vapours and moves upwards in the atmosphere is called evaporation.The vapours in clouds turn into water droplets ready to fall as rain or snow is called condensation.Transpiration is a plant function in which surplus water is exhaled from the stomata of the leaf.Therefore, the water cycle shows precipitation.
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Cross a heterozygous black rabbit with a heterozygous black rabbit. What is the
Genotype Percentages? What is the Phenotype Percentages? (How many will be
black, How many white? Percentages of BB Bb & bb)
Explanation:
Bb x Bb
1BB, 2Bb, and 1 bb
Let B=black fur allele(dominant) and b=white fur allele(recessive),
¾ of the rabbit will be black while ¼ will be white.
Hence,
¾×100%=75%
¼×100%=25%
I do believe that i need help.
If none of the flower colors being bred don't show dominance, it would be pink only because if one showed dominance, than it means you would see that flower and that flower color only. Mixing red with white create pink, and therefore pink would be the only type of flower to have.
How to Determine density from an experiment ?
Answer:
To find the total Volume displaced, subtract Initial Volume and Volume of Object. To calculate Density divide the Mass in grams by the Volume displaced in milliliters. Finally record whether the object floats or sinks.
Explanation:
Which statement is true?(1 point)
Mendelian traits cannot be shown on a bell curve.
Mendelian traits are controlled by multiple genes.
Mendelian traits follows a normal distribution.
Hair color and IQ are examples of Mendelian traits.
Answer:
Hair color and IQ are examples of Mendelian traits.
Drag each label to the correct location on the image.
The image below shows the process of DNA replication. Identify the components of the process.
Answer:
Edmentum
Explanation:
Got it right
which blood vessel brings oxygenated blood from lungs to heart ?
Answer:
Pulmonary vein
Explanation:
This vein transports oxygenated blood from the lungs to the heart to be sent to other body parts.
in which part of cell are calcium ions usually found?
Answer:
The endoplasmic reticulum
Explanation:
becuase im smart
can someone pls help ill mark u the brainlest and no LINKS!!
Answer:
yeah ill help
Explanation:
15. The
results when pollutants trap radiant energy from the sun
resulting in a warming trend in the atmosphere.
A. greenhouse effect
B. acid rain
C. radioactivity
D. extinction
Answer:
A. greenhouse effect
Explanation:
The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere. Climate change results from the shedding of gases like CO2 into the atmosphere where it can trap more heat.
what do most spaniards and cubans eat when the clock strikes midnight
Answer:
12 grapes
Explanation: When the clock strikes midnight, people across various Spanish-speaking countries like Cuba and Spain make sure to eat 12 grapes -- one for good luck in each month of the new year.
these diverticula are lined with transitional cell epithelium.
Answer:
calyceal diverticula
Explanation:
there is no explanation
Which nucleic acid carries genetic information from the cell nucleus to the
ribosomes?
*
DNA
messenger RNA
transfer RNA
the kidneys filter blood
Compared to other routes of administration, ________ is the most complicated way for a drug to enter the bloodstream.
Answer: the answer is oral consumption
Compared to other routes of administration, oral consumption is the most complicated way for a drug to enter the bloodstream.
How many ways can drugs enter the bloodstream?Substances can enter the body in different ways. Drugs can be smoked, inhaled, injected, swallowed (tablets, capsules, liquids), or applied transdermally (applied to the skin). Most of the drugs are taken orally and broken down in the gastrointestinal tract. Once the drug arrives, it is broken down by stomach acid before passing through the liver and into the bloodstream. Medicines can be taken in a variety of ways, including swallowing, inhaling, absorbing through the skin, and injecting. Each method has advantages and disadvantages, and not all methods can be used with all drugs. After the tablet is swallowed, it is usually absorbed through the stomach wall into the blood. These take effect within minutes, but usually take 1-2 hours to reach peak blood levels.To learn more about medication, refer
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QUESTION 1 What technique allows you to cut hair very close to the scalp and create a flat top or square shape
Answer:
Buzz cut= razor
technique= going up with the razor to slightly create a certain look
Explanation:
*What is the relationship between DNA and gene expression? How do they depend on each other?*
Answer:
Gene expression is the process by which the instructions in our DNA are converted into a functional product, such as a protein. When the information stored in our DNA? is converted into instructions for making proteins? or other molecules, it is called gene expression
Explanation:
DNA makes genetic expression. DNA is a structure located in the nucleus that makes people themselves. DNA is unique to everyone, no two people are exactly the same. The way the DNA is structured and what instructions it was given affect one's genetic makeup.