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
Lyrx [107]
3 years ago
15

78% of Earth's atmosphere is nitrogen gas. All living things need nitrogen as a part of DNA and RNA. Yet you and I, and other li

ving things, cannot use the nitrogen in our atmosphere directly. One type of organism is responsible for "fixing" nitrogen or helping to put it in a form so other living things can use it. That organism is?
A) bacteria.
B) fungi.
C) plants.
D) viruses.
Biology
2 answers:
Natalija [7]3 years ago
4 0

The answer is A. Bacteria

Bas_tet [7]3 years ago
3 0
Correct Answer:
Option A

Explanation:
Nitrogen fixation means converting the atmospheric nitrogen to Ammonia or to other compounds which can be readily used by other organisms. As stated in the question, the nitrogen available in the atmosphere is inert, so it must be converted into a form so that the organisms can use it. The bacteria responsible for this activity are known as Nitrogen Fixing Bacteria and are an important element of the ecosystem. Some of these Nitrogen fixing bacteria live freely in the soil while some are associated with the crops. Some examples of Nitrogen fixing bacteria are Rhizobium and Azospirillum.
You might be interested in
Study the diagram. A student on Earth's surface at position A has just seen the sunrise. Which one
Viefleur [7K]

Answer:

B

The second student has not yet seen the same sunrise.

Explanation:

Because as the day goes on, the sunlight shines on places without light as the earth is rotating.

3 0
2 years ago
Read 2 more answers
What happens to the atmospheric temperatures when the carbon dioxide levels increase? Decrease?
BARSIC [14]
It affects the layers of the earth the ozone layer which protects us from the sun can't protect very good. Which increases the tempature here on earth.
3 0
3 years ago
All of the following are sources of energy for humans during exercise EXCEPTa.stored ATP.b.alcoholic fermentation.c.lacticacid f
marshall27 [118]

Answer:Letra B

Explanation:

Fementaçã alcoo

5 0
2 years ago
What are 3 major pieces of evidence that prove different species are related?
Julli [10]

Three different ways the relatedness of species could be assessed is through:

<span>1.    </span>Their genotype. Similarity in DNA between the species is a good indication of their relatedness.

<span>2.    </span>Their phenotype. If the two species have similar body form and function, then there is a good possibility that they are related.

<span>The presence of intermediates, either living or in the fossil record, can show relatedness between two species.</span>
6 0
3 years ago
State two ways in which palisade tissue is a dapted for thotosynthesis?<br>​
olga nikolaevna [1]
Palisade mesophyll cells are closely packed to absorb the maximum light. They are at right angles to the surface of leaf to reduce the number of cross walls. Large vacuole pushes chloroplasts to the edge of a cell. Chloroplasts at edge enable short diffusion path for carbon dioxide and to absorb maximum light.
Hope this helped
7 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following activities is thought to involve mirror neurons? a.Thinking about performing a physical action or movemen
    6·2 answers
  • Why do you think it is so difficult for some people to accept the idea of continental drift?
    14·1 answer
  • Which list shows the levels of organization of an organism in hierarchical order from left to right, from the smallest to the mo
    12·1 answer
  • The function of hemoglobin is to The function of hemoglobin is to stimulate erythropoiesis. carry dissolved blood gases. carry b
    10·1 answer
  • List and describe each step of the scientific method
    11·1 answer
  • Cortisol and growth hormone both have roles in _____ blood sugar, whereas insulin plays a role in ______ blood sugar.
    11·1 answer
  • The decimal reduction time (DRT) to kill 90% of cell present for autoclaving a culture is 1.5 minutes. How long would it take to
    8·1 answer
  • Describe how the highlighted tool works in each scenario. Explain how the tool makes each task easier.
    5·2 answers
  • CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU
    9·2 answers
  • What skills are needed to an Executive Director of Animal Research?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!