In the late 1800s, a biologist studying animal embryos coined the phrase "ontogeny recapitulates phylogeny," meaning that the physical development of an animal embryo (ontogeny) seemed to retrace the changing form of the species during its evolutionary history (phylogeny).

Why would embryonic development retrace evolutionary steps?

Answers

Answer 1

Answer:

Embryo provides information about their ancestors.

Explanation:

Embryonic development retrace evolutionary steps because embryo provides evidence for evolution as embryo formation in widely-divergent groups of organisms are conserved. This embryo provides information that leads to their ancestors from which they evolve so we can say that embryonic development provides evidence for evolution of an organism.


Related Questions

link between the struction and function of water molecule​

Answers

W a t e r ahhhh 8228c+x Skansen 2828

what atoms are rearranged by plants during photosynthesis? pls help ‼️

Answers

Answer:

Glucose, oxygen, water

Explanation:

I could be wrong but  

Answer:

Inside the cells of plants, algae, and photosynthetic bacteria, chlorophyll, and enzymes use the light energy to rearrange the atoms of the reactants to form the products, molecules of glucose and oxygen gas

Explanation:

helppp, i need this asap

Answers

C. is the answer

A determined the gender
B and D is part of mitosis not meiosis

The diagram that explains the crossing over in the following diagram is option C, as here the crossing over takes place and the chromosomes exchange their genetic materials and can later produce the gametes.

What exactly is the significance of the cross-over in meiosis?

Crossing over is important in meiosis because it occurs when homologous chromosomes exchange genetic material, resulting in the formation of new combinations of genetic information and increasing genetic diversity in the population. As a result, evolution occurs, and unique offspring are produced.

Hence, the diagram that explains the crossing over in the following diagram is option C, as here the crossing over takes place and the chromosomes exchange their genetic materials and can later produce the gametes.

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 now that you know the bacteria in each tank drag the tanks to put them in the correct order

Answers

Answer:

1st ammonia nitrifying

2nd nitrite nitrifying

3rd denitrifying

Explanation:

Explain how probability can be used to predict inherited traits.

Answers

Jsjsjrhrjhrhuejehdheh 28 x 293+]wowo


Describe the movement of water if cells are in a hypertonic solution, hypotonic solution, and isotonic solution.
Why?

Answers

Water molecules move inside the cell in a hypotonic solution causing it to swell


Water molecules move outside the cell in a hypertonic solution causing it to shrink


Water molecules in an isotonic solution does not move inside or outside the cell and the cell’s volume will remain stable

Would the distance from the Sun to the next closest star be more or less than
39.4 Astronomical Units? Why or why not?

Answers

Answer: The distance from the sun to the closest star would be less. I dont know why, but their is a star that is close to the sun. The average distance between them is about 23 astronomical units. 23 is of course less then the 39.4. Also the 23 is a little more than the distance between the sun and Uranus.

Explanation: ( This is new information, not old.)

The distance from the Sun to the closest star cannot be less than 39.4 AU because both stars will start attracting each other.

Astronomical Units:An astronomical unit is equal to the distance between the earth and the sun.The nearest star from our sun is Alpha Centauri which is 4.367 light-years away from our sun.If a star is just 34 astronomical units away from our sun, the sun and the closest star will start attracting each other due to the high gravitational force. This event results in the destruction of the solar system.

Therefore, the distance from the Sun to the closest star cannot be less than 39.4 AU.

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Many cities contain green areas, such as the park shown in the image below.
How do such roadless areas make a city more sustainable?

Answers

Answer:

Its A.

Explanation:

I just took the quiz trust me :D

Answer:

They provide high-density urban areas with space for outdoor recreation.

Explanation:

I just took the quiz.

darwin found the bones of the ground sloth and what he thought was an anciet capybara in south america. he asked around, but nobody in south america has ever seen either of thise animals alive. what had happen to them?

Answers

Answer:

They're extinct

Explanation:

Which of these is a characteristic of a sustainable city?
A. Efficient mass transit between suburbs and the city center
B. Few green areas located near the city center
c. Strict zoning that prevents residential areas from being located near
business areas
Х
D. Well-maintained roads that prevent the need for too much walking

Answers

Answer:

B

Explanation:

Answer:

A

Explanation:

answer is a I had to learn the hard way

Petrified Trees are an example of what kind of fossil?
A. Carbonized
B. Preserved
C. Per-mineralized
D. Rock

Answers

Answer:

C- Per-mineralized

Explanation:

Hope this helped good luck studying, have a good day/night! <3

Weather balloons are sent into the atmosphere to record: (Select all that apply)
humidity
temperature
wind
pressure
precipitation

Answers

Answer:

temperature pressure moisture

Explanation:

From my notes hope this helps.

Answer:

temperature pressure moisture

Explanation:

Centrioles are cell structures involved primarily in

Answers

Answer:

In the cell, centrioles aid in cell division by facilitating the separation of chromosomes. For this reason, they are located near the nucleus. Apart from cell division, centrioles are also involved in the formation of cilia and flagella and thus contribute to cell movement.

Explanation:

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In the cell, centrioles aid in cell division by facilitating the separation of chromosomes. For this reason, they are located near the nucleus. Apart from cell division, centrioles are also involved in the formation of cilia and flagella and thus contribute to cell movement.

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Paragraph 5 looks at the types of fuels organisms need.Which of the Following statements is true?

1)Humans need a lot of fat molecules to avoid hunger

2)humans need proteins, fatty acids, vitamins & minerals

3)Humans need a constant supply of red meat

4)Humans need to take Vitamin B supplements

Please help & thank You

Answers

Answer:

2

Explanation:

Humans need proteins, fatty acids, vitamins, and minerals

Why are the best index fossils from species that only existed for a short period of time ?

Answers

Answer:

Because once they were very common they disappeared after the mass extinction event. ... Many geologic periods were defined by events that made natural boundary to the period.

Answer: Because once they were very common they disappeared after the mass extinction event.

Explanation: Hope this helppssss!!! :)


Why scientific naming is necessary?

Answers

Answer:

The correct answer would be - to communicate unambiguously globally.

Explanation:

In different locations on the earth or countries, there are thousands of languages present, and each language has a name for the different species or different organisms that leads to confusion and tough to take the record.

Therefore, there is a two-part scientific name system proposed for every species first name for the genus and second part for the species, it is called "binomial nomenclature." It helps and allows to communicate unambiguously about the species of different organisms globally.

Multicellular organisms contain organ systems. Which of the following BEST describes the organs in an organ system?
о A. The organs in an organ system are made up of similar cells.
O
B. The organs in an organ system are made up of similar tissues.
C. The organs in an organ system work together to perform a specific function.
O
D. The organs in an organ system work together to perform all the functions a multicellular organism needs to maintain homeostasis.

Answers

Answer:

C. The organs in an organ system work together to perform a specific function.

Explanation:

The definition of an organ system is a "group of organs that work together as a biological system to perform one or more functions". Each organ in a system does a different job in order to achieve the same goal. For example, the stomach breaks down food, and the intestines gather nutrients but the goal of both is to digest food.

whats this,in order?

Answers

Answer:

1. Individuals in a species vary in characteristics because of differences in their genes.

Individuals will be born with various characteristics due to their genes for instance some people are short and other are tall.

2. Individuals have to compete when resources (such as food)  are limited.

Resources are generally limited so individuals would have to compete t get those resources and survive.

3. Individuals with variations that help them get more of the  resources are more likely to survive.

Some of the characteristics that these individuals have which are different will give them an edge and enable them to get more resources and thus survive.

4. Individuals that survive can pass their genetic variations on to  their offspring.

The individuals that survive will now have offspring and will pass on their genes to their offspring which give give them the same edge their parents had.

5.   Over time, there are more individuals with the variations that  are well adapted to the environment.

Eventually there will be more of those offspring that can adapt as opposed to those who couldn't and keep dying out.

4. Describe your results.
I

Answers

What? No picture or no question.
Please add pictures

Help (will give crown for answer)

Answers

Answer:genes

Explanation:

100 POINTS!!!! I WILL GIVE BRAINLIEST TO WHO ANSWERS CORRECTLY!!!!!!!!!!!!

Please give a food web for a blue viper

Answers

Answer:

i think mice

Explanation:

please give brainliest

“What are 3 scientific words that relate to the cell cycle?”

( question I have on an assignment )

Answers

Answer:

the cycle of growth and asexual reproduction of a cell, consisting of interphase followed in actively dividing cells by prophase, metaphase, anaphase, and telophase

Explanation:

hope this helps

Whats the name of this flower?​

Answers

I think it’s an African lily.

Answer:African lily

Explanation:

Just searched it

4 ( 3x+10y=54 and x=y+5 )

Answers

Answer:

x−y=9 , x+y=6

4x+4y=1

, 6x−y=1

x2−y=2

, 2x−y=−1

Explanation:

Which of these is not true for the crust?

Group of answer choices

You can dig through it

It's split into plates

It's the thinnest layer of the earth

It's made of granite and basalt

pls i need help it’s a test!

Answers

Answer:

I guess the answer is d ......

Which of the following characteristics of a population will make it better able to adapt to environmental changes?
A.Rapid production of many offspring.
B.Specialization in one type of food source.
C.Large amount of inherited genetic variation.
D.Isolation to a limited geographic range.

Answers

Answer:

C

Explanation:

Answer: C. Large amount of inherited genetic variation.

If you had a population where the genetic variation wasn't as high or practically non-existent, then that population is likely suited to that very narrow specific environment. If the environment doesn't change, then the population wouldn't have a problem. However, the environment isn't likely to stay static. Things change all the time and this change will bring challenges to the population that was suited for the old environmental conditions.

Populations with high genetic variability will have some individuals thrive while some unfortunate members will perish. The members that die off are likely the ones who cannot adapt to the changes. As the environment changes, the individuals who survive will pass on their DNA to their offspring, allowing for natural selection to reinforce those favorable traits. Since the environment is constantly changing, whether that change is slow or fast, this means the process is continued indefinitely. So that's why high genetic variability is favored.

PLEASEEEEE HELP!! TY
1. What is the overall purpose of mitosis and meiosis?
2. Why is it important that DNA is replicated prior to cell division?
3. How are normal cells and cancer cells different from each other?
4. Describe mistakes that can occur during the cell cycle and cause human disorders.

Answers

Mitosis aims to create daughter cells that are completely genetically similar to their mothers, with no extra or less chromosomes. In contrast, meiosis serves a single function in the human body that is the creation of gametes.

What is cell division?

The process by which a parent cell divides into two daughter cells is known as cell division. Cell growth and chromosome replication precede cell division, which often happens as part of a longer cell cycle.

Before dividing, cells must copy their DNA. This promotes successful inheritance of genetic features by giving each daughter cell a copy of the genome.

Grow in the absence of signals instructing them to do so in cancer cells. Only when they get such signals do normal cells expand. Disregard cues that would typically instruct cells to cease dividing or die.

Aneuploidy is a condition when there are either too many or too few chromosomes in the daughter cells produced during mitosis.

Thus, this is the overall purpose of mitosis and meiosis.

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1. The overarching goal of mitosis is to ensure cell division and the transfer of genetic material to daughter cells for tissue repair, growth and development.

2. To maintain genetic integrity, DNA replication is necessary prior to cell division.

3. Cancer cells have uncontrolled growth, escape cell death and lack contact inhibition, whereas normal cells have controlled cell division, experience programmed cell death and show contact inhibition.

4. The disorders in humans can result from errors in the cell cycle. Diseases such as Down syndrome are caused by abnormal chromosomes. Gene changes can affect the development of cancer.

Meiosis produces gametes for sexual reproduction, while mitosis assures cell division for growth, development, and tissue repair. Accurate transmission of genetic information and preservation of genetic integrity in daughter cells depend on DNA replication prior to cell division.

Whereas cancer cells have uncontrolled proliferation, escape from cell death, and lack contact inhibition, normal cells have regulated division, programmed cell death, and appear to have contact inhibition. Human disorders such as chromosomal abnormalities (such as Down syndrome), gene mutations that cause cancer, errors in DNA replication or repair that cause genetic disorders, and cell cycle control that leads to uncontrolled cell division and tumor formation, all of which Mistakes made during this can have consequences. cell cycle.

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What would happen to a cell if placed in each of the following solutions:

a. Isotonic solution:


b. Hypotonic solution:



c. Hypertonic solution:

Answers

Answer:

Isotonic: there would be no net flow of water, the cell will stay stable

Hypotonic: the cell will fill up with water and burst

Hypertonic: The cell will shrink because it loses water

Explanation:

As the zygote goes through mitosis and creates more cells. Each cell is called a stem cell. In order to become a certain type of cell, these cells will become Or This means they will turn Genes for the type of cell they are becoming, and turn Genes for the type of cell they won't be.

Answers

Answer:

differentiated; on; off

Explanation:

As the zygote goes through mitosis and creates more cells. Each cell is called a stem cell. In order to become a certain type of cell, these cells will become differentiated Or This means they will turn Genes on for the type of cell they are becoming, and turn Genes off for the type of cell they won't be.

Stem cells become specialized cells through the process of differentiation. The stem cells all have identical DNA in them. They become specialized for a particular function (s) through the process of differentiation. During this process, some specific genes are either turned on or off. Cells in which the same genes are expressed become specialized for similar functions and can then come together to form a tissue.

the major difference between judaism and christianity is that christiand believe what
1 jesus is the son of god
2jesus and abraham were both sons of god
3) jesus is only a prophet
4) christianity is polytheistic​

Answers

Answer: #3 - Judaism emphasizes the Oneness of God and rejects the Christian concept of God in human form.

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