20. Phylogenetic tree are used to help show which creatures are most closely related to each other. In the diagram below,
common ancestor. The line from the chicken and the line from the dinosaur connect, so they would have a common
the red dot shows the most common ancestor between a chimpanzee and a human. When two lines come together, there is a
ancestor. All the lines at the bottom connect, this would be the least common ancestor, but they are still related.
Chimpanzee
Human Chicken
Dinosaur
Most recent common
ancestor
Answers
Answer: a
Explanation: the explanation is
Related Questions
You earn $17.50/hr and work 40 hr/wk. Your deductions are FICA (7.65%), federal tax withholding (12.3%), and state tax withholding (6.2%). Your housing and fixed expenses are 30% of your realized income per month. You want to save 5 months' worth in an emergency fund within a year. How much do you need to save per month to fund the emergency fund?
Answers
Answer:
So, you need to save approximately $258.60 per month to fund your emergency fund within a year based on the given information.
Explanation:
Let's break down the steps to calculate the amount you need to save per month to fund the emergency fund:
Step 1: Calculate your total deductions
Your deductions include FICA (7.65%), federal tax withholding (12.3%), and state tax withholding (6.2%). To calculate the total deductions, we add these percentages:
Total deductions = FICA + federal tax withholding + state tax withholding
Total deductions = 7.65% + 12.3% + 6.2%
Total deductions = 26.15%
Step 2: Calculate your net income per hour
Your net income per hour is the hourly rate minus the total deductions:
Net income per hour = Hourly rate - Total deductions
Net income per hour = $17.50/hr - 26.15%
Net income per hour = $17.50/hr - $4.57/hr
Net income per hour = $12.93/hr
Step 3: Calculate your monthly realized income
Your monthly realized income is the net income per hour multiplied by the number of hours you work per week and the number of weeks in a month:
Monthly realized income = Net income per hour x Number of hours per week x Number of weeks per month
Monthly realized income = $12.93/hr x 40 hr/wk x 4 wk/month
Monthly realized income = $2,068.80/month
Step 4: Calculate your housing and fixed expenses
Your housing and fixed expenses are 30% of your realized income per month:
Housing and fixed expenses = 30% x Monthly realized income
Housing and fixed expenses = 30% x $2,068.80
Housing and fixed expenses = $620.64/month
Step 5: Calculate the total amount needed for the emergency fund
You want to save 5 months' worth of expenses in an emergency fund within a year. So, the total amount needed for the emergency fund is:
Total amount needed for emergency fund = 5 x Housing and fixed expenses
Total amount needed for emergency fund = 5 x $620.64
Total amount needed for emergency fund = $3,103.20
Step 6: Calculate the amount to save per month
To calculate the amount you need to save per month to fund the emergency fund, divide the total amount needed by the number of months in a year:
Amount to save per month = Total amount needed for emergency fund / Number of months in a year
Amount to save per month = $3,103.20 / 12
Amount to save per month ≈ $258.60
So, you need to save approximately $258.60 per month to fund your emergency fund within a year based on the given information.
The trait for the type of leaf margin is con-
trolled by 1 pair of alleles. Serrate margin is
dominant over entire margin. Two plants
with serrate margin leaves (1 heterozygous
and 1 homozygous dominant) are crossed.
What is the chance that the offspring have
entire leaves
Answers
Since the genotype ss is the only one that produces the entire margin phenotype, the chance of an offspring having entire leaves is 50% (1 out of 2 possible genotypes: ss or Ss/sS).
What is an allele?An allele is a variant form of a gene that can determine a specific trait or characteristic. Genes are located on chromosomes and can have multiple alleles, which can be dominant, recessive, or codominant. Alleles can be inherited from both parents and can interact with other alleles to determine the phenotype of an organism. For example, the gene for eye color in humans has several alleles, including brown, blue, and green.
The offspring will have a 50% chance of having entire leaves.
When the heterozygous (Ss) and homozygous dominant (SS) plants are crossed, their offspring will inherit one allele from each parent. The possible combinations of alleles are: SS, Ss, and sS (which is the same as Ss).
The genotype SS and Ss both have the dominant allele for serrate margins, while the genotype ss has the recessive allele for entire margins.
Therefore, the possible genotypes and their corresponding phenotypes are:
SS: Serrate margin
Ss: Serrate margin
sS: Serrate margin
ss: Entire margin
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Which phrase best describes what happens to the matter in nail polish remover as it evaporates?
it is destroyed
It disappears
it is converted into energy
it changes form
Answers
it changes form phrase best describes what happens to the matter in nail polish remover as it evaporates
What transpires to the substance in nail paint remover when it dries up?Cooling is caused by evaporation. While evaporating, a substance's particles absorb heat energy from its environment and transform into vapour. The low boiling point of acetone is 56 C. Acetone readily evaporates by absorbing heat from our hands when we hold it in our hands.
If nail paint gets on skin, it dries off very quickly. So there is no chemical reaction or change in the substance's identity; rather, liquid nail paint turns into gaseous nail polish. So, this is a bodily alteration.
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Describe the texture of the marrow from the beef bone.
Biology question
Answers
Answer: Bone Marrow texture best described as a Thick Beefy Butter
Explanation: Raw Bone Marrow will smell fresh and slightly sweet. When cooked, its aroma deepens considerably to that of roasted fatty beef.
Can someone help me really fast please? When you give the answer please elaborate don’t just put a few words
Answers
1. We eat to obtain the nutrients and energy our bodies need to function properly.
2. The types of food animals in the ocean eat depend on their species and location.
Why is eating important?Nutrients like carbohydrates, proteins, and fats provide energy, while vitamins and minerals support various bodily processes.
Some animals, like plankton and krill, feed on tiny plants and animals floating in the water. Others, like sharks and dolphins, hunt and eat larger fish and squid. Some ocean animals, like sea turtles, feed on both plants and animals, while others, like whales, consume primarily krill and other small organisms.
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I need help with these if do thank you so muchh
Answers
A gene is a unit of heredity that is responsible for the inheritance of a particular trait from parents to offspring.
What are the principles of natural selection?The four principles of natural selection are:
Variation: Individuals within a population exhibit differences in their traits or characteristics.
Inheritance: Some of these variations are passed from parents to their offspring.
Selection: Individuals with certain variations that make them better adapted to their environment are more likely to survive and reproduce.
Time: Over many generations, the frequency of advantageous traits increases within the population, leading to evolutionary change.
A species is a group of individuals with similar physical and genetic characteristics that can interbreed and produce fertile offspring.
Genetic drift is the movement of alleles from one population to another due to chance events, such as the migration of individuals.
The term that refers to the evolutionary history of a species is "phylogeny".
Phylogeny is the study of the evolutionary relationships among organisms and their history of descent from a common ancestor. It is based on the comparison of anatomical, genetic, and other characteristics among different species.
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Compare the average rate at which geothermal and solar energy reach earths surface? As a policy maker in pursuit of solving world energy problems, which one would you pursue?
Answers
Answer:
The average rate at which geothermal and solar energy reach Earth's surface are significantly different.
Geothermal energy is generated from the heat of the Earth's core, and it is estimated that the total power output of geothermal energy is around 44 TW (terawatts). However, only a small fraction of this power, about 3.3%, is estimated to reach the Earth's surface. This means that the average rate at which geothermal energy reaches the Earth's surface is around 1.45 TW.
On the other hand, solar energy is generated from the radiation of the sun, and the total power output of the sun is estimated to be around 386,000 TW. While some of this energy is absorbed by the Earth's atmosphere and reflected back into space, the remaining energy is estimated to be around 174 PW (petawatts). This means that the average rate at which solar energy reaches the Earth's surface is around 174,000 TW.
As a policy maker in pursuit of solving world energy problems, solar energy would be the more viable option, due to its significantly higher rate of energy reaching the Earth's surface. Additionally, solar energy is a renewable resource that does not produce greenhouse gas emissions, making it an environmentally friendly option. Geothermal energy, while also renewable and clean, may not be as easily accessible in all areas and may require significant investment in infrastructure for harnessing its energy.
Hope this helps!
I need help pleaseeeeee
Answers
Answer:
Ecosystem and biome only.
Explanation:
This is because the communities and population are the counts of how many and what species of animals live in the specific community or population. The abiotic factors are things that aren't living, so animals wouldn't be counted.
HELP!!!! The graph on the left shows the total supply and consumption of forests when the consumption rate and population growth rate are both low. The graph on the right shows biodiversity under the same conditions. Which conclusion do the graphs support??
A) trees have little to no effect on biodiversity
B) biodiversity causes deforestation
C) the faster people use trees, the higher the biodiversity
D) deforestation leads to loss of biodiversity
Answers
Based on the graph, it can be concluded that deforestation leads to the loss of biodiversity.
What is the effect of the consumption of forests on biodiversity?
Based on the information provided, the graph on the left shows the total supply and consumption of forests when the consumption rate and population growth rate are both low, while the graph on the right shows biodiversity under the same conditions.
The graph on the right shows a decline in biodiversity as the years progress. This decline in biodiversity could be due to a range of factors, such as pollution, habitat destruction, or deforestation.
Therefore, the graphs support the conclusion that deforestation, which leads to habitat destruction, causes a loss of biodiversity (option D).
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Josie notices that it gets dark at night, but is light again every morning when she wakes up. What is actually happening
when it gets lighter in the mornings?
Answers
Which of the following is a way to use a plant’s DNA in forensic science?
a.
A forensic scientist can use a plant’s DNA to prove a suspect was in the area of a crime.
c.
A forensic scientist can add a plant’s DNA to a DNA sample to make it large enough to test.
b.
A forensic scientist can use a plant’s DNA to identify a victim’s father.
d.
All of these are ways a forensic scientist can use a plant’s DNA.
Answers
Answer: I believe the answer is A using a plant's DNA to prove a suspect was in the area of a crime.
Explanation:
I need help solving this problem
Answers
the comet that hit jupiter raised fiery plumes large enough to incinerate the ________
Answers
Answer:
The comet ventured too close to Jupiter's mighty gravitational pull two years ago and was pulled apart into a score of large fragments and thousands of small ones. As each fragment hits Jupiter's dense atmosphere, it is stopped as if it had hit a brick wall. In an instant, its initial speed of 130,000 miles per hour is reduced to zero, and practically all of its gigantic kinetic energy is converted to heat -- so much heat that a titanic explosion results. In the case of each of the largest fragments, this is equivalent to 250 million megatons of TNT. (The largest hydrogen bomb ever detonated produced a blast equivalent to about 58 megatons.)
Explanation:
All of the following statements regarding the Kyoto Protocol are true EXCEPT:
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
the treaty set different but specific targets of carbon dioxide reduction for various nations.
the treaty was replaced by the 2016 Paris Agreement.
the protocol was ratified by the United States.
no emission targets were set for developing countries.
Answers
Answer:
c
Explanation:
C) The protocol was ratified by the United States is not true.The Kyoto Protocol was an international agreement adopted in 1997 with the objective of reducing greenhouse gas emissions in order to combat global climate change.
The following statements about the Kyoto Protocol are true:
A) The treaty set different but specific targets of carbon dioxide reduction for various nations.
B) The treaty was replaced by the 2016 Paris Agreement.
D) No emission targets were set for developing countries.
However, the United States did not ratify the Kyoto Protocol, which was a major setback for the treaty's effectiveness.
Answer: 3rd option is not true
Explanation:
The United States did sign the Kyoto Protocol but it never ratified it, meaning it did not formally agree to be bound by its requirements. Therefore, the United States did not participate in the treaty's implementation.
20. Which sector creates the most fossil fuel emissions?
agriculture
industry
electricity generation
transportation
All changes saved
Answers
With respect to climate forcing, which one of the following is a positive forcer?
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
carbon dioxide
sulfur dioxide
oxygen gas
helium
Answers
Answer:
the answer is sulphur dioxide
With respect to climate forcing, carbon dioxide is a positive forcer. The correct option is A.
Thus, because of its capacity to trap heat in the Earth's atmosphere and so contribute to the greenhouse effect, carbon dioxide is regarded as a positive climatic forcing agent. The atmosphere contains more carbon dioxide as a result of human activity, principally the burning of fossil fuels, which raises Earth's temperature and causes climate change.
A significant greenhouse gas that affects climate change on Earth is carbon dioxide. It has been shown that one of the main causes of anthropogenic climate change and global warming is the rising atmospheric concentration of carbon dioxide.
Thus, the ideal selection is option A.
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Why does fragmented forest habitat increase the risk of predation on bird nests by cats, dogs, raccoons, and other animals? Responses Birds will prefer to make their nests at the edges of forest habitat. Birds are forced to build nests on the ground instead of in protected trees. Predators have an easier time spotting bird nests in fragmented habitat. Predators are more common at the edges of fragmented habitat.
Answers
The borders of fragmentation habitat are where predators are more prevalent.
What impact does deforestation have on bird breeding habits?Bird populations are directly impacted by deforestation, mostly due to the destruction of their habitat. A bird's environment serves as its home, and deforestation robs them of their habitat. Many birds are unable to procreate when they are removed from their native habitat, which ultimately causes a reduction in their number.
What impact does deforestation have on animals and birds?Due to the drastic changes it causes to vast areas of ecosystems and habitats, deforestation is one of the land uses that has the greatest impact on migrating birds. The effect of land usage on tropical forests may clearly be seen from above.
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How do the
populations in a community depend on
each other?
Answers
There are many distinct ways in which populations in a community are interdependent, and these interdependencies form the cornerstone of the intricate interactions that exist between various species in an ecosystem.
What is population?A population is a collection of people belonging to the same species who coexist and communicate in a certain geographical region. Depending on the species and the habitat it lives in, a population can have anything from a few to millions of members.
Examples of how different groups in a society are interdependent include:
Food webs and chains: In a community, many creatures rely on other organisms for nourishment. For instance, plants are the main providers of the food that feeds herbivores, which are then consumed by carnivores. A food web is formed by the links between several food chains, which is a network of energy flow.
Pollination: To enable fertilization and the development of seeds, many plants rely on pollinators like bees, butterflies, and birds to move pollen from one plant to another.
Decomposition: species that break down dead organic materials, such as bacteria and fungus, recycle nutrients and make them accessible to other species in the ecosystem.
Competition: Within a community, populations may clash for resources like food, water, and space. This rivalry may restrict population expansion and have an impact on how species are distributed throughout an ecosystem.
Symbiotic interactions: In a community where two or more species coexist and are dependent on one another for existence, there are symbiotic interactions between the many populations that make up that community.
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According to the selection, in which two ways have
the Devils Hole pupfish adapted to their
environment?
A
B
C
D
E
They do not take deep breaths.
They do not grow a pelvic fin.
They swim slower.
They stay smaller.
They eat more food.
Answers
The Devil's Hole pupfish has evolved a behavior described as "paradoxical anaerobism" as a result of adapting to a lack of oxygen in its habitat.
The correct answer is: A.
Can pupfish adapt?HABITAT: Having evolved to live within dry regions, deserts pupfish are capable of withstand conditions such as daily temperature changes of up to forty-five degrees Celsius, water temperatures around 120 degrees Celsius, extremely low concentrations of oxygen, salinity levels over twice as much of the ocean, and water temperatures above 110 degrees Fahrenheit.
Under which circumstances do pupfish reside?Warm, salinized waters or salt streams are where they live, which would quickly kill a trout. For example, a Salt Creek pupfish can survive in seawater that is three times as salty. In Monument Valley National Park, they are plainly visible from a boardwalk.
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PLEASE ANSWER ASAP!
The biologist shares his graph showing the results of an experiment that measured the concentration of zooxanthelle of shallow-water coral in picograma per cell.
Answers
The shallow water ecosystem depends on water temperatures below 30°C to maintain the symbiotic relationship between corals and zooxanthelle.
What is the relationship between water temperature and coral reefs?Water temperature has a significant relationship with coral reefs. Coral reefs are composed of tiny marine animals called coral polyps that build a calcium carbonate skeleton.
These animals live in a symbiotic relationship with photosynthetic algae called zooxanthellae, which provide them with food and give the reefs their vibrant colors. However, this relationship is sensitive to changes in water temperature.
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Which statement best describes how eukaryotic cells are able to replicate such larger amounts of DNA.
Answers
Answer:
D (I think)
Explanation:
A - No, it replicates everything
B - I think it's referring to okazaki fragments (?) which is on the lagging strand so no.
C - No, in interphase they prepare the for meiosis.
D - the only reasonable statement left
What is the origin of the term cell in biology?
Answers
Answer:
The Origins Of The Word 'Cell' In the 1660s, Robert Hooke looked through a primitive microscope at a thinly cut piece of cork. He saw a series of walled boxes that reminded him of the tiny rooms, or cellula, occupied by monks. Medical historian Dr. Howard Markel discusses Hooke's coining of the word "cell."
i need help with this science question pleasee
Answers
Answer:
c
Explanation:
the rabbit eats grass and then is eaten by fox so in my view its a primary consumer and primary consumer are herbivores so in this case rabbit is primary consumer
Summers in Earth's Northern Hemisphere are warmest when:
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
the North Pole points toward Polaris, the current north star.
axial precession matches the axial tilt.
axial precession matches the orbital eccentricity.
the North Pole points toward Vega.
Answers
None of the answer choices accurately describe when summers in Earth's Northern Hemisphere are the warmest.
What is Hotness?
In physics, "hotness" is not a term that is used. The concept that is usually referred to in relation to temperature is "thermal energy", which is the total kinetic energy of the particles that make up a substance. When the thermal energy of a substance increases, its temperature also increases, which we perceive as the substance becoming "hotter".
The warmest summers in the Northern Hemisphere occur when the hemisphere is tilted toward the sun and receives the most direct sunlight. This occurs during the summer solstice, which happens around June 20-22 each year. The axial tilt is responsible for the seasons, and the precession of the Earth's axis does not have a significant effect on the timing of the seasons.
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Animal-mediated pollination ... (choose one most appropriate answer)
O Is characteristic of the 4th great radiation of the land plants, which resulted in a group of plants called the
Angiosperms.
O Tends to increase inbreeding among the species of plant being pollinated.
O Likely has decreased the diversification of both insects and flowering plants.
O Allows the plant to reproduce only when the plant population is at a high density.
O Is a less efficient mode of pollination than wind pollination.
Answers
Answer: Tends to increase inbreeding among the species of plant being pollinated.
Explanation:
Animal-mediated pollination, where animals such as insects, birds, or bats transfer pollen from one flower to another, tends to increase inbreeding among the species of plant being pollinated. This is because animals often visit multiple flowers of the same plant or closely related plants in close proximity, leading to a higher likelihood of pollen being transferred between closely related individuals. This can result in reduced genetic diversity and increased inbreeding among the plant population, which may have both positive and negative effects depending on the specific species and ecological context.
The other options provided do not accurately reflect the characteristics of animal-mediated pollination. For example, animal-mediated pollination is actually considered to be a more efficient mode of pollination compared to wind pollination, as it allows for targeted and controlled transfer of pollen between flowers, increasing the chances of successful pollination and reproduction. Animal-mediated pollination is also not limited to high plant population density or specific plant groups such as angiosperms, and there is no evidence to suggest that it has decreased diversification among insects and flowering plants.
How do trees interact with other organisms?
a.
They provide mammals with food.
b.
They receive shelter from insects.
c.
They obtain food from other plants.
d.
All of the above
V
Answers
Which of the following did Mendel conclude about patterns of inheritance?
A) An organism inherits one gene in total
B) An organism inherits two genes of a given trait during gamete production
C) Similar forms of genes account for variation in the inherited traits.
D) An organism inherits one gene for each trait
Answers
The following Mendel concluded about patterns of inheritance : C) Similar forms of genes account for variation in the inherited traits.
What did Mendel conclude about patterns of inheritance?Mendel concluded that inheritance is determined by discrete units called genes, which are passed down from parents to offspring in a predictable manner.
He observed that some traits are dominant over others, and that these dominant traits can mask the expression of recessive traits. Mendel also proposed the Law of Segregation, which states that during gamete formation, the two alleles of a gene separate from each other so that each gamete carries only one allele for each gene.
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Answer:
B.
Explanation:
3. A mass spectrometer is used to get information from
(a) Plants
(c) Rocks
(b) Rubber
(d) Concrete
Answers
Answer: Rocks
Explanation:
Select the one true statement.
1. Mitochondria direct cell activities by sending instructions to different parts of
a plant cell.
2. Chloroplasts break down sugar to release energy that a plant cell can use.
3. The cell wall makes a plant cell strong and rigid.
Answers
3. The cell wall makes a plant cell strong and rigid.
Temperature sensors are found where in the body?
O The pancreas and gallbladder
O The hypothalamus and the skin
O The adrenal gland and pituitary gland
O The lungs and heart
O The liver and kidneys