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
mario62 [17]
3 years ago
7

A scientist is comparing the sequences of related genes among three species. Two of the species have very similar sequences, whi

le the sequence of the third species differs greatly from the others. The scientist uses this comparison to propose an evolutionary history of the species. Which statement best explains the usefulness of the evidence that the scientist gathered?
A. Mutations can act as a molecular clock that show when species had a common ancestor.

B. Changes in gene sequences generally occur when two species interbreed.

C. Changes in gene sequences generally occur when one species evolves into another species.

D. Although some mutations have little effect, many mutations act to distinguish one species from another.
Biology
1 answer:
Brrunno [24]3 years ago
3 0

Answer: d

Explanation: Just took the test

You might be interested in
Match the receptor to the place it is most commonly found on an animal's body. 1. chemoreceptors skin 2. mechanoreceptors nose 3
allochka39001 [22]
The photoreceptors would be your eyes, chemoreceptors skin, olfactory for nose and mechanoreceptors for obviously tongue hope this helps.
6 0
3 years ago
Read 2 more answers
1. A student is completing a Punnett square for a trait (X/x) that is autosomal and inherited by the dominant allele. The father
zvonat [6]

Answer:

C

Explanation:

autsomsal means that it is not x-linked/ realted to gametes. Dominate means that it needs only one X to get the trait

Using the punnet square

             X       x

      x     Xx   xx

      x     Xx   xx

there is 2 X which means there is a 50% change that their child will get the trait

5 0
2 years ago
I need help please?!!!!!
adelina 88 [10]
Skateboard & bicycle.
8 0
3 years ago
Read 2 more answers
Arachidonic acid (ARA) and docosahexaenoic acid (DHA) are two long-chain fatty acids necessary for the development of Multiple C
lana [24]

Answer:

The correct answer is: the nervous system, brain, and eyes.

Explanation:

Arachidonic acid (ARA) and docosahexaenoic acid (DHA) are long-chain polyunsaturated fatty acids that have great nutritional value, as they are omega-6 and omega-3 fatty acids, respectively, meaning they are essential fats that cannot be produced by the body and, therefore, need to be part of the diet.

The consumption of ARA and DHA has been directly linked to the development of the brain and the retina, and the inclusion of these fatty acids in the nutrition of infants has been proven to be extremely beneficial to their growth.

Besides their functions in the development of the nervous system and the eyes, ARA and DHA play a role in maintaining a healthy immune system and preventing cardiovascular conditions.

7 0
2 years ago
A major source of renewable energy in developing countries is _____. *
Troyanec [42]
The answer is B. Hope this helps. Please mark Brainliest:)
4 0
2 years ago
Read 2 more answers
Other questions:
  • Most depressed people have decreased activity in the left and increased activity in the right prefrontal cortex.
    10·2 answers
  • Which of the following choices gives examples of biotic factors in an ecosystem?
    7·2 answers
  • On one show. Tyler learns that meerkats spend the late afternoon in their burrows. “They are so lazy!" he complains. James expla
    11·2 answers
  • How do bacteria and viruses spread from one person to another?
    5·2 answers
  • How a common classification system aids in scientific communication.
    8·1 answer
  • what do you think happened to the light from the lightbulb as it passed through the gas cloud before passing through the spectro
    13·1 answer
  • Which term is associated with asexual reproduction but not sexual reproduction
    14·2 answers
  • Please help me I’m having so much trouble with this
    5·2 answers
  • Which of the following is NOT a function of the digestive system? *
    9·2 answers
  • Nterphase lasts for ________ of a cell's life.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!