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Solnce55 [7]
3 years ago
15

What is free nitrogen?

Biology
2 answers:
Mumz [18]3 years ago
6 0

Answer: The answer is C: nitrogen that cannot be used by organisms.

Explanation: I took the test.

Tpy6a [65]3 years ago
5 0

Answer:

nitrogen that cannot be used

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Some bacteria live in the roots of plants like soybeans and peas what role of these bacteria in the nitrogen cycle
kolezko [41]

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3 0
4 years ago
What is represented by the base root of a phylogenetic tree? the extinction of the species the origin of the species evolution o
Arada [10]
"evolution of populations over time" is <span>represented by the base root of a phylogenetic tree</span>
7 0
3 years ago
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Which of the following is a true statement? a. Mammals were the prominent species just before the extinction of dinosaurs. b. Ma
Angelina_Jolie [31]

Answer:

The correct answer is B.

Explanation:

Option A is wrong. Mammals were not the prominent species before the extinction of dinosaurs because the mammal species that lived during the dinosaurs' era were so small that they only weighed several grams and occupied small areas as their habitats.

Option C is wrong. As dinosaurs became extinct, reptiles and "birds" remained as their descendant which evolved to some of the species that we know today.

Option D is wrong. Pangea started to break up to form the geographic isolation for the diversion of many species around 175 million years ago.

So the correct answer is B. Massive extinction disrupts and changes the food chain in such a big way that it triggers a domino effect that leads to species adapting to their new environment and diversifying thus forming new species in the process.

I hope this answer helps.

5 0
3 years ago
NO LINKS PLEASE
ella [17]

Answer:

blood flows through pores in the tissues

8 0
3 years ago
Ancient human migrations can be better understood by analyzing genetic characteristics of modern populations; elements transmitt
topjm [15]

Answer:

mitochondria DNA (mtDNA) has maternal inheritance

chloroplast DNA (cpDNA) has paternal inheritance

Explanation:

DNA is deoxyribonucleic acid is the molecule responsible for encoding the genetics instructions used in the development and functioning of all known leaving organism.

in humans mitochondria DNA (mtDNA) has maternal inheritance and

chloroplast DNA (cpDNA) has paternal inheritance

5 0
3 years ago
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