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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.
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3 years ago
In your oxidation experiment, we are using hypochlorite as the oxidizing agent, why?.
Irina18 [472]

They are good bleaching agents and disinfectants due to their oxidizing potency. Hypochlorites can be employed in organic chemistry to oxidize primary alcohols into carboxylic acids.

<h3>What function does hypochlorite serve as an oxidizer?</h3>
  • In this experiment, we utilize the test paper to make sure that the reaction has received more bleach than is necessary to completely oxidize the alcohol.
  • Since the process moves forward more quickly in an acidic environment, hypochlorous acid (HOCl) is assumed to be the real oxidizing agent (although this is not confirmed).
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To learn more about Hypochlorite refer to:

brainly.com/question/6667369

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4 0
1 year ago
Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. In addi
ivolga24 [154]
This is a di-hybrid cross example. You can use a large punnet square to work out all the possible phenotype combinations in the offspring, however the shortcut is the 9:3:3:1 ratio. The phenotype outcomes of this ratio can be inferred directly with dominant alleles filling the 9 ratio. The 3 ratios are one dominant and one recessive for each of the two genes, and finaly the 1 ratio is recessive allele for both genes.

Like so:
9 Polka dot tail and long eye lashes
3 Polka dot tail and short eyelashes
3 Solid tail and long eye lashes
1 Solid tail and short eye lashes

The answer is D.


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3 years ago
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professor190 [17]

Answer:

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Explanation:

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Explanation:

8 0
3 years ago
Read 2 more answers
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