1. How can embryology be used to explain evolution?

2. What are fossils? How are fossils used to explain evolution?

Answers

Answer 1

Answer: 1. Embryology, the study of the development of the anatomy of an organism to its adult form, provides evidence for evolution as embryo formation in widely-divergent groups of organisms tends to be conserved. ... Another form of evidence of evolution is the convergence of form in organisms that share similar environments. 2.  Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today.  mark brainliest

Explanation:


Related Questions

write two examples of consumers tell whether they are herbivores omnivores carnivors or scavengers

Answers

Answers

Lion,Tiger -Carnivores

vulture- scavenger

Cow,sheep -Herbivores

Man, Pig -Omnivores

A panda (herbivore) eats bamboo shoots and leaves, while a lion (carnivore) preys on other animals.A bear (omnivore) eats both plants and animals, while a vulture (scavenger) feeds on the remains of dead animals.What are consumers?

In an ecosystem, consumers are organisms that obtain their energy and nutrients by feeding on other organisms. They are a vital part of the food chain, and they come in different sizes and types.

Consumers can be classified into several categories based on what they eat. For example:

Herbivores: These are animals that consume only plants for their food. Examples include rabbits, cows, and giraffes.

Carnivores: These are animals that consume other animals for their food. Examples include lions, tigers, and sharks.

Omnivores: These are animals that eat both plants and animals. Examples include humans, bears, and raccoons.

Scavengers: These are animals that feed on the remains of dead organisms. Examples include vultures, hyenas, and some types of beetles.

Consumers play an important role in an ecosystem, as they help to transfer energy and nutrients from one level of the food chain to another. They are an integral part of maintaining the balance and stability of an ecosystem.

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Which statement about how geologists study the ages of rock layers is true?
The law of superposition means that older rocks are on top.
Geologists can find the exact age of a rock by looking at its relative position.
The principle of original horizontality provides the basis for the law of superposition.
Relative age can be determined by using the concept of unconformity.

Answers

Answer: The principle of original horizontality provides the basis for the law of superposition.

Explanation:

The law of superposition in geology suggests that the rocks or sediments which are newly formed due to erosion and sedimentation of the original rocks lie above the old material. This law is supported by the principle of original horizontality according to which the newly formed sediments suspend horizontally in the layers of rocks and sediments under the effect of gravity. Thus an horizontal strata distinguishes the old and the new material.

Answer:

c

Explanation:

I took the quiz and got it right

Why does the sun appear brighter than the other stars in the universe

Answers

Answer:

because its closer and bigger

Explanation:

its just closer and bigger than all of the other stars

The sun is many times larger than Earth but appears small because it is very far away. Even though the sun is very far from Earth, it is much closer than other stars. Because the sun is closer to Earth than any other star, it appears much larger and brighter than any other star in the sky.

The image depicts the impact of a mutagen on the phenotype of F1 and F2 offspring in nematodes, a common roundworm. Which
arguments can be made based on the information in the model You may select more than one correct choice.

Answers

Answer:

A, D, E

Explanation:

just did it

The arguments that can be made based on the information in the model are as follows:

The mutated DNA is a recessive allele. The mutagen altered the DNA of the worm in the parental generation. The DNA altered by the mutagen occurs in gamete cells and is passed to offspring.

Thus, the correct options for this question are A, D, and E.

What is Mutagen?

Mutagen may be characterized as a type of agent that possesses the capability to induce mutation within the genetic segment of living organisms. Mutagens are of two types, they are:

Physical mutagens: UV radiations.Chemical mutagens: Chemicals like ethidium bromide.

According to the context of this question, mutation can only be inherited from parent to offspring, if it is induced within the gamete cells of parents. While during the course of life, the mutation also induces in the genomic sequence of an individual.

Therefore, the correct options for this question are A, D, and E.

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Imagine that an area was set aside to relocate orangutans displaced from their rainforest habitats. A solution like this would involve many groups of people and careful considerations. Review the questions below, then develop at least two additional questions that could be considered.

What do orangutans use for shelter in their native ecosystem?
How much area does a specific number of orangutans need?

Answers

Answer:

a) Orangutan prefer to shelter in leafy trees or only leaves

b) One territory is of size 9 sq. km.

Explanation:

a) Orangutans spend a large part of their life in tropical rainforest trees. They prefer to sleep on the bunch of green trees and protect themselves from harmful weather conditions by using broad leaves of rainforest trees.

b) Each individual territory of a male Orangutan is near about 9 sq. km. and can extend up to 15 square kilometer. In one territory only one male lives along with other females and young ones.

Glycolysis that starts with glycogen instead of glucose can be considered to have a higher energy yield because:

A. Phosphorolysis reactions cleave bonds with phosphate instead of water.
B. Phosphorylase is a better enzyme than hexokinase
C. Phosphorylase produces a glucose phosphate without spending an ATP to do it
D. All of these

Answers

Answer:

A

Explanation:

The answer is a Because Phosphorolysis reactions cleave bonds with phosphate instead of water (: just trust me

Glycolysis that starts with glycogen instead of glucose can be considered to have a higher energy yield because phosphorolysis reactions cleave bonds with phosphate instead of water. The correct option is A.

What is glycolysis?

Through a sequence of processes known as glycolysis, glucose is divided into two pyruvate molecules, each of which has three carbons.

The metabolic process that changes glucose into pyruvate is known as glycolysis.

The high-energy molecules adenosine triphosphate and reduced nicotinamide adenine dinucleotide are created using the free energy released during this process. A series of ten enzyme-catalyzed processes make up glycolysis.

In contrast to phosphorolysis reactions, which cleave bonds with phosphate rather than water, glycolysis can be thought of as having a larger energy yield because it begins with glycogen rather than glucose.

Not producing adenosine 5′-triphosphate is not the primary goal of glycolysis; rather, it is to produce pyruvate for the trichloroacetic acid (TCA) cycle.

By boosting the ratio of NADH to NAD+, the glycolytic synthesis of pyruvate lowers the cytosol.

Thus, the correct option is A.

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if you have the gene for hemophilia, will you always have hemophilia?

Answers

Answer:

most likely

Explanation:

most likelyeeeeee :)

- Cyanide is a strong cytochrome c oxidase inhibitor. Cytochrome c is the last enzyme in the
electron transport chain. If cell is exposed to cyanide, most of the cyanide will be found in which
of the organelles?​

Answers

Cyanide binds to Fe3+ in heme-containing proteins. This inhibits the terminal cytochrome complex IV of the electron transport chain. The blocklock of complex IV by cyanide depletes ATP culminating in cell death. Oxygen is unable to reoxidize the reduced cytochrome a3. Thus, cellular respiration is inhibited, as well as ATP production, in essence depriving the cells, tissue, and, ultimately, the whole body of oxygen. Hypoxia evolves into metabolic acidosis and decreased oxygen saturation. The extent of lactic acidosis indicates the severity of the cyanide poisoning. In a collapsed individual, plasma lactate is an indicator of cyanide poisoning. In severe cyanide poisonings, up to 98% of the cyanide in the bloodstream is tightly bound to red blood cells. The ancillary response is myocardial depression and decline in cardiac output. Bradycardia, hypotension, and cardiac arrhythmia then develop into VF and cardiovascular collapse.

please mark in brain list

What are the two functions of the nervous system? *
A. Provides stucture and protection
B. Sends and recieves signals throughout the body
C. Obtain nutrients and removes waste produced by the body
D. Regulates body temperature and protects the body from damage


Help please

Answers

Answer:

B. Sends and receives signals throughout the body.

Answer:

sends and receives signals throughout the body

hope it helps

Which of the following describes the function of genomics and marker-assisted selection?
A. help determine the heritability of a trait and eliminate undesirable traits
B. introduce probiotics and the transfer of microorganisms from other species
C. eliminate undesirable traits and improve desirable traits
D. improve desirable traits and help determine the heritability of a trait

Answers

Answer:

D

Explanation:

Improve desirable traits and help determine the heritability of a trait.

Can someone please correct me or tell me if I’m correct please that will be lovely

Answers

Answer:

A

Explanation:

Destruction of habitat is not going to preserve the habitat.

When people eat shrimp, they first pull off an outer covering that in life provided protection to the animal. What is this structure?

Answers

Answer:

carapace

Explanation:

the shell which protect the cephalothorax is called the carapace

how natural selection contributes to the evolution of a species

Answers

The species of an organism with more favorable traits will live longer to reproduce and evolve while with natural selection, the organisms will get picked out and eaten

Owls and hawks are both predators, but hawks hunt during the day and owls hunt at night. This reduces ____________________.

A. predation

B. adaptation

C. mutualism

D. competition

Answers

Answer: D. competition

Predators compete with each other in order to achieve prey for food. Since owl hunt at night and hawks hunt in the morning, there is a way unlikely chance they would encounter one another to fight for food.

In a short, detailed paragraph, please answer the following.
What happens in the light reaction of photosynthesis?

What happens in the dark reaction of photosynthesis?

What five factors affect photosynthesis and its rate? How?

Answers

Answer:

Ans - 1 Photosynthesis begins with the light reactions. It is during these reactions that the energy from sunlight is absorbed by the pigment chlorophyll in the thylakoid membranes of the chloroplast.

Ans-2 The dark reactions of photosynthesis occur in the stroma of the chloroplast where they utilize the products of the light reaction. In the dark reaction, plants use carbon dioxide with ATP and NADPH from the light reactions to produce glucose.

Ans-3 The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.

Question and Answer options in photo.

Zoom in if needed
Help :(

Answers

Answer:

I belive that the answer is B

Explanation:

I believe that it's B because if the rabit population continued to grow then it will allow the soil to become more fuirtle because of the dropings that the rabbits leave behind. This would cause more plants and growth in the habitat, which would lead to economic growth

I hope this helps!

when does a star start to die

Answers

Answer:

Several billion years after its life starts, a star will die. How the star dies, however, depends on what type of star it is. Stars Like the Sun. When the core runs out of hydrogen fuel, it will contract under the weight of gravity. However, some hydrogen fusion will occur in the upper layers. As the core contracts, it heats up.

is it wrong for parents to give female hormone pills to there little sons, without there consent?

Answers

Without consent, almost everything is wrong... so yes, it’s wrong.
Yes definitely nxnbbbb

Which of the following best describes a process by which metamorphic rock becomes igneous rock

A.weathering into sediments, then eroding
B.compacting under pressure and cementing
C.changing shape under heat and pressure
D.melting completely, then cooling

Answers

Answer: D. Melting completely, then cooling

Metamorphic rock melt, become magma (which is really just lava), and then comes to the Earth’s surface to eventually cool and become igneous rocks.

PLEASE HELP ME!!!! I'M ALMOST OUT OF TIME!!

Answers

Answer:

Impact metamorphism-3

Dynamic metamorphism-2

contact metamorphism-1

regional metamorphism-4

For this structural characteristic, decide if it is a characteristic of DNA, a characteristic of RNA, a characteristic of both or a characteristic of neither? It contains thymine as a base

Answers

Answer:it is a characteristic of DNA

Explanation:

Deoxyribonucleic acid(DNA) is made 5 carbon deoxyribose sugar, phosphate group,Nitrogenous base which include purine and pyrimidine. Purine base compose of Adenine and guanine while pyrimidine base compose of Cytosine and thymine.

In Ribonucleic acid (RNA) we have 5 carbon ribose sugar, phosphate group and nitrogenous bases which are purine and pyrimidine. Purine consist of Adenine and guanine while pyrimidine compose of Cytosine and Uracil where thymine in DNA is replaced by Uracil in RNA. This makes Thymine a components of DNA not RNA.

Apply Concepts Eventually, most people with Alzheimer's disease lose the ability to recognize common objects. Explain which lobe is affected at this point in the disease

Answers

Answer:

The right temporal lobe

Explanation:

The cerebral cortex of the brain has two sections known as hemispheres, and each hemisphere can be divided into four lobes: frontal, parietal, temporal and occipital. Alzheimer's disease is the most common cause of dementia, which is characterized by the damage of the temporal lobe. Alzheimer’s disease usually initiates in the hippocampus, which is a structure inside each temporal lobe. The temporal lobes are involved in different neuronal functions: object recognition, face recognition, perception, memory, language, emotions, etc. The right temporal lobe is mainly involved in processing visual information (i.e., face recognition, object recognition, familiar recognition).

b) How does adaptation affect the survival of a species? Why?

Answers

In evolutionary theory, adaptation is the biological mechanism by which organisms adjust to new environments or to changes in their current environment. This enables better survival and reproduction compared with other members of the species, leading to evolution.

Explanation:

If you want more info, you can check out this site. It is safe and secure.

https://www.nationalgeographic.org/encyclopedia/adaptation/

I'LL GIVE YOU BRAINLIEST!!Which is the best definition of air pressure? *
1 point
the weight of the air pressing on everything in the environment
the amount of precipitation in a certain area
the type of clouds in the atmosphere
the amount of water vapor in the air

Answers

it's the weight of the air pressing on everything in the environment

What’s the answer to this I didn’t mean to click this btw

Answers

It’s the 4th answer, trust me.

how do neurons transmit signals throughout the body?

Answers

Answer:

When neurons communicate, an electric impulse triggers the realease of neurotransmitters from the axon into the synapse. The neurotransmitters cross the synapse and bind to special molecules on the other side ,called receptors. Receptors are located on the dendrites. Receptors receive And process the messages

In a eukaryotic cell, which of the following processes directly involves DNA?

Answers

The provided question lacks the options, however, the options associated with the question is as follows;

A. translation

B. cellular respiration

C. active transport of ions

D. replication of chromosomes

Answer:

The correct answer is - D. replication of chromosomes.

Explanation:

During every cell division, either meiosis or mitotic the chromosomal DNA present in the nucleus is needed to be duplicated and the process that involves the duplication of this chromosomal DNA is known as replication of chromosome which takes place during the interphase of the cell division.

All other processes mentioned in the options are not involved or directly not involved in the processes. Translation involves the mRNA in the cytoplasm to produce amino acids with the help of ribosomes. Cellular respiration involves mitochondria and does not require DNA in the process.

Which is a compound composed of carbon, hydrogen, and oxygen in a ratio of one oxygen and two hydrogen atoms for each carbon atom?

Answers

carbohydrates is what a compound composed of carbon, hydrogen, and oxygen in a ratio of one oxygen and two hydrogen atoms for each carbon atom is.

You are studying a biochemical pathway in the mold Neurospora where enzyme 1 converts the initial substrate into intermediate substrate A; enzyme 2 converts intermediate substrate A into intermediate substrate B; enzyme 3 converts intermediate substrate B into intermediate substrate C; and enzyme 4 converts intermediate substrate C into the end product, an amino acid that is essential for growth. You isolate a mutant that is unable to grow on minimal media. Which data would provide the strongest support for the hypothesis that this mutation occurred in the gene that codes for enzyme 2

Answers

Complete question:

You are studying a biochemical pathway in the mold Neurospora where enzyme 1 converts the initial substrate into intermediate substrate A; enzyme 2 converts intermediate substrate A into intermediate substrate B; enzyme 3 converts intermediate substrate B into intermediate substrate C; and enzyme 4 converts intermediate substrate C into the end product, an amino acid that is essential for growth. You isolate a mutant that is unable to grow on minimal media. Which data would provide the strongest support for the hypothesis that this mutation occurred in the gene that codes for enzyme 2?

a. The mold can grow on rich medium plus intermediate substrate C, but not on rich medium plus intermediate substrate B.

b. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus the initial substrate.

c. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus intermediate substrate A.

d. The mold can grow on rich medium plus intermediate substrate D, but not on rich medium plus intermediate substrate C.

e. The mold can grow on minimal medium plus intermediate substrate A, but not on minimal medium plus intermediate substrate C.

Answer:

c. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus intermediate substrate A.

Explanation:

Let us first diagram the pathway for a better understanding.

The normal organism produces four enzymes that convert substrates in the medium that allow it to survive, grow, and reproduce.  

initial substrate ------------> A ----------------> B ----------------> C ----------------> AA

                           Enzyme 1       Enzyme 2        Enzyme 3         Enzyme 4

Any mutation on the Neurospora´s enzymes will not let the organism grow on the minimal medium because it will not be able to convert the minimal substrate into the following one, because the mutated enzyme will not accomplish its original function.

So if the mutation occurs in enzyme 1, the organism will not be able to convert the initial substrate into intermediate substrate A. And the rest of the reaction will not be possible either because of the lack of substance A.

initial substrate -----X----> A -------X-----> B ------X--------> C ------X-------> AA

          mutated Enzyme 1      Enzyme 2       Enzyme 3        Enzyme 4

If the mutation occurs in enzyme 2, the organism will not be able to convert the intermediate substrate A into intermediate substrate B. And the rest of the reaction will not be possible either because of the lack of substance B.

initial substrate ------------> A -------X--------> B -------X------> C --------X-----> AA

                           Enzyme 1   mutated Enz. 2     Enzyme 3         Enzyme 4

If the mutation occurs in enzyme 3, the organism will not be able to convert the intermediate substrate B into intermediate substrate C. And the last reaction will not be possible either because of the lack of substance C.

initial substrate ------------> A ----------------> B -------X--------> C -------X------> AA

                           Enzyme 1       Enzyme 2     mutated Enz. 3     Enzyme 4

And if the mutation occurs in enzyme 4, the organism will not be able to convert the intermediate substrate C into the essential amino acid.

initial substrate ------------> A ----------------> B ----------------> C -------X-------> AA

                           Enzyme 1       Enzyme 2        Enzyme 3      Mutated Enz. 4

But, if we artificially add to the medium the substrate that should be produced by the original enzyme (and that is not converted because of the mutation), then the organism will grow and survive because the other enzymes will be able to produce the essential amino acid.

So, if enzyme 2 is the only enzyme mutated, the organism will not be able to live in a medium with substrate A because the mutated enzyme will not convert the substrate A into B. There will not be B substrate in the medium, and the other enzymes will not produce the essential amino acid. So if the mutation occurs in enzyme 2, substrate A is useless to the organism because it will not survive.

But if we add the intermediate substrate B to the medium, the organism will survive. In a medium with substrate B, all the other reactions will be possible, and the organism will get the essential amino acid. The artificial addition of B substrate will replace the function of the original enzyme 2 -which is the one that converts A into B-.

PLEASE HELP

Which of the following is not a random occurrence?

A selection of the best-suited traits for the environment, leading to adaptive evolution
Genetic drift changing the gene pool of a population and creating fluctuations in the allele frequencies
The bottleneck effect after an earthquake, resulting in a reduction of genetic variation
The founder effect, when a small population is isolated and the gene pool significantly reduced from the parent population

Answers

Answer: A selection of the best-suited traits for the environment, leading to adaptive evolution brainliest

Explanation:

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