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
sveta [45]
3 years ago
14

What happens After each step in a dichotomous key?

Biology
1 answer:
cricket20 [7]3 years ago
6 0
I think the organisms are compared to each other.
You might be interested in
1. Which of the following is always single-stranded?
pentagon [3]
1. <span>a. messenger RNA (mRNA)

2. </span><span>c. they have different sugars

3. </span><span>a. uracil

Hope this helps!</span>
8 0
3 years ago
Read 2 more answers
Natural selection is an important mechanism for evolution. If there is a change in the environment, which of the following state
Alex17521 [72]

Answer:

I think the correct answer to your question is:B

Explanation:

8 0
2 years ago
Environmental factors can influence natural selection because they can increase or decrease
olchik [2.2K]

Answer:

Environmental factors can influence natural selection because they can increase or decrease the amount of genetic variation in a population.

Explanation:

Natural selection is a process that involves the survival of species through changes in the expression of their genes, making possible the process of adaptation to environmental changes. It is one of the explanations for the biological evolution of species.

The second premise, necessary for natural selection to be possible, implies the existence of a variability (genetics) of traits among individuals in a population.

The other premises of natural selection are the faculty of traits to be inheritable and that genetic variability should lead to reproductive success and survival.

  • <em>The other options are not related to the process of natural selection, since it is not possible for natural selection to increase or decrease the number of chromosomes, in addition to the fact that genetic variability must be observed in a population, not in a single individual, to be considered natural selection </em>
4 0
3 years ago
Read 2 more answers
During the light reactions, the pigments and proteins of ____________ use light to send energized electrons through an electron
Nataly [62]

Answer:

The correct answer is - photosystem II; ATP; water; oxygen

Explanation:

The photosynthesis process involves two different cycles known as the light reaction and the dark reaction. In light reaction there are two photosystems; photosystem I and photosystem II.

During light reaction, there are several pigments such as chlorophyll a and other pigments present in photosystem II that trap the light and transfer excited electrons through ETC to produce ATP which is a form of energy used by cells.

A water molecule takes place of the excited electron that is transferred and releases oxygen as waste or byproduct in this reaction.

5 0
2 years ago
When a parasite enters the body, basophils in the blood stream or mast cells found in other tissues release chemical signals. Th
AleksandrR [38]

eosinophils

They are the type of white blood cells mainly involved in parasitic infections.

6 0
2 years ago
Other questions:
  • C4 plants are thought to be more efficient than c3 plants because they
    15·2 answers
  • Using the nonexperimental method, a researcher collects data on exercise and anxiety from a number of people and finds that exer
    14·2 answers
  • Which of these is an example of a physical change?
    6·2 answers
  • Which chemical bond most likely stores the most energy?
    14·1 answer
  • Which statement does NOT accurately describe eukaryotic and prokaryotic cells?
    10·1 answer
  • Write Your Own Questions
    11·1 answer
  • Observe: On the SIMULATION pane, observe the directions of the velocity (green) and acceleration (purple) vectors. A.What do you
    13·1 answer
  • What process is used to link amino acids together? Name the bonds found between amino acids in a polypeptide chain? Explain the
    10·1 answer
  • DNA methylation and histone acetylation are examples of which of the following processes? DNA methylation and histone acetylatio
    7·2 answers
  • MULTIPLE CHOICE
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!