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marysya [2.9K]
3 years ago
10

Why is nitrogen fixation necessary?

Biology
1 answer:
Simora [160]3 years ago
6 0

Answer:

C. Most plants use single nitrogen atoms, not N2 molecules.

Explanation:

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iVinArrow [24]
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3 years ago
How does an animal cell react when there is no glucose available to carry out cellular respiration?
Verdich [7]

Answer:

B) It breaks down polysaccharides such as starch.

Explanation:

Polysaccharides are long chains of monosaccharides like glucose joined together with glycosidic linkages. While plants can simply make glucose via photosynthesis, animals rely on glucose sourced from their diet. In animals, glucose is stored as glycogen; however, plant storage polysaccharides like starch are regularly broken down through digestion using enzymes.

Enzymes are proteins which catalyze chemical reactions like the breakdown of large polysaccharides. Alpha amylase, an enzyme produced in the pancreas, is also found in human saliva; it catalyzes the hydrolysis, or breakdown of starch into glucose. Amylase acts on polysaccharides bonds at random points along the chain by splitting the α 1-4 glycosidic bonds. This produces maltose, dextrin and glucose; this glucose is used in ATP synthesis via <em>respiration, ethyl alcohol fermentation and lactic fermentation</em>.

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3 years ago
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Answer:

2nd

Explanation:

Phenotype is the organism apperence (physical)

6 0
3 years ago
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Rotenone, a piscicide (fish poison), interferes with the transfer of electrons between Complex I and Complex II in the process s
Bingel [31]

Answer:

Mitochondria stops working.

Explanation:

When the mitochondria of fish exposed to Rotenone, it inhibits the cellular respiration which is the main cause of death of fishes. This inhibiting of cellular respiration in mitochondria leads to reduction in cellular uptake of oxygen and this reduction is responsible for the death of fishes. This Rotenone releases by the plants present in the water as well as used as pesticides for killing of fishes.

8 0
3 years ago
Why is blood classified as a connective tissue?
3241004551 [841]

Answer:

d) Blood develops from mesenchyme.

Explanation:

Blood is classified as a connective tissue because it develops from mesenchyme.

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3 years ago
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