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Sunny_sXe [5.5K]
3 years ago
14

Which is true about ecosystems?

Biology
2 answers:
Naily [24]3 years ago
7 0
A is the correct answer I think
ANTONII [103]3 years ago
3 0
A. once defined, an ecosystem is a unit scientists can analyze.
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Why is it that nitrogen is often a limiting plant nutrient, despite the fact that the atmosphere is 80% nitrogen gas (N2)
Len [333]

Nitrogen is a limiting plant nutrient because the bulk of the available nitrogen in the atmosphere is not usable by plants.

Plants are not able to make use of the nitrogen in the atmosphere directly. Atmospheric nitrogen needs to be converted into usable forms before it can be accessed by plants.

The conversion of atmospheric nitrogen to usable form by plants is known as nitrogen fixation and this is achievable by the activities of certain bacteria.

More on nitrogen fixation can be found here; brainly.com/question/4191267?referrer=searchResults

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3 years ago
Which of the following does not require a medium through which to travel in word which can travel through empty space
Alla [95]

Answer: Light

Explanation: Light can travel in empty space or vacuum. It doesn't need any medium to which it travels.

5 0
4 years ago
The first line drug choice for a previously health adult patient diagnosed with community acquired pneumonia would be
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3 years ago
What conclusion does the fossil record support?
Eva8 [605]
Should be A. Species have changed over time.
5 0
3 years ago
Transcribe the following DNA sequence (use a different color for the mRNA strand, and remember that RNA has uracil instead of th
Fed [463]

Answer:

C U A G C U A U G G U A A G C C G C G U A U G A A G C

Explanation:

this is the complementary strand in mRNA.

A=U

G=C

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this is the answer key to any mRNA strand.

Hope this helps! :)

8 0
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