1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Katena32 [7]
3 years ago
15

According to the fossil record, which statement

Biology
2 answers:
Pepsi [2]3 years ago
6 0
<span>(1) Most of the species that have lived on Earth no longer exist.</span>
Scientists actually believe that 99.9% of all species to have lived on this planet are now extinct.
jolli1 [7]3 years ago
4 0

Answer:

(1) Most of the species that have lived on Earth no longer exist.

Explanation:

Fossil describes the remnant or trace of animals or plants in a geologic age that is preserved in the Earth's crust. It can be studied to give a fossil record, which is an evidence of past existence of a plant or an animal.

Fossil record is the history of life of an organisms documented by fossil that has been preserved in rocks. It helps paleontologists, archaeologists, and geologists to make accurate predictions about events and species.

Scientists believe that almost 99.9% of species of different organisms that have lived on Earth are now extinct. Therefore according to fossil record, most of the species that have lived on Earth no longer exist.

You might be interested in
Why do primates have a longer childhood than other mammals?<br> It's not a multiple choice question
ycow [4]

Answer:

The research shows that for the cortex to evolve to be large, primates need a longer pregnancy, whereas a longer childhood is needed for a larger cerebellum to evolve. This means it is critical for infants to have the right environment to develop crucial skills.

Explanation:

3 0
3 years ago
Any membrane – bound structure inside a cell that performs a specific(e.g vacuoles store substance in the cell) is known as what
lys-0071 [83]

Answer:

Organelle

Explanation:

The general name given to membrane bound structures eukaryotic cell that perform specific function for necessary cell survival.

4 0
3 years ago
In which phase do sister chromatids line up in the middle of the cell, (in 'single-file', without a homologous partner)? Group o
ipn [44]

Answer:

The correct answer is ''METAPHASE I.''      

Explanation:

Metaphase I is the stage in which chromosomal studies are generally performed, because its morphology is very clear. The chromosomes, moved by the mitotic spindle, are placed in the center, between the two asters and form the so-called metaphase plate, in which the chromosomes are positioned in such a way that the kinetochore of each sister chromatid are oriented towards the opposite poles. Keeping chromosomes on the cell equator implies a balance between the forces of the microtubules that tend to move the kinetochores toward opposite poles, so positioning them in the center involves a great deal of energy.In each kinetochore, between 20-30 microtubules can be anchored, which exert traction force towards the pole from which they come, so the metaphase plate is maintained by the balance between the opposite forces of the poles on the chromosomes, which hold their sister chromatids by centromeric cohesin.

3 0
2 years ago
Would an animal cell be able to survive without a mitochondria
taurus [48]
Mitochondria important for the cell that can't survive without it but blood cell is an exception. Blood is a tissue in animals so RBCs are animal cells and don't have mitochondria
5 0
3 years ago
Epinephrine, insulin, and auxins are all examples of that help produce feedback.
JulsSmile [24]

Answer: cofactors.

Explanation:

Epinephrine, insulin and auxins are cofactors.

Cofactors are non protein substance which activate enzymes activity by increasing the rate of chemical reaction of enzymes. They are organic molecules and they assist in enzyme activity. They exist in performing some reactions the enzymes cannot perform alone.

For example, insulin activate enzyme hexokinase which phosphorylate glucose.

8 0
3 years ago
Read 2 more answers
Other questions:
  • How are the rings of the gas giants theorized to have formed
    7·1 answer
  • What is the maximum number of covalent bonds a carbon atom can form with other atoms
    6·1 answer
  • While _________ involves a splitting off of parts of the personality,_________ involves the existence of multiple, intact person
    12·1 answer
  • Explain how a sudden change in the environment either through a disaster or through shifts in conditions
    13·1 answer
  • Photosynthesis involves the transformation of light energy into
    6·2 answers
  • Do sharks have bad vision​
    10·1 answer
  • The cell cycle describes the processes that take place as a cell Your answer: A.forms new cells. B.absorbs nutrients. C.makes pr
    10·2 answers
  • What are the two major control systems of the body?
    13·1 answer
  • The ___ of the cell directs cell activity and acts like the control center
    11·2 answers
  • PLS PLS HELP
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!