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Nutka1998 [239]
2 years ago
13

What are the main nitrogen-containing nutrients in the biosphere?.

Biology
1 answer:
Vilka [71]2 years ago
4 0
Ammonia (NH3), nitrate ions (NO3), and nitrite ions (NO2) .
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Please help!!
r-ruslan [8.4K]

Answer:

The answer is B

Explanation:

The correct answer is B, paradox. A paradox is a seemingly contradictory statement, as in he knows in singing not to sing. The lines do not rhyme (A), exaggerate (B), or develop an extended metaphor (C).

4 0
4 years ago
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Describe a situation that could cause lactic acid to build up in human muscle cells?
BartSMP [9]

Anaerobic exercise is one situation that would cause a buildup of lactic acid in human muscle cells. As the cells switched over from aerobic respiration to fermentation in order to produce ATP, lactic acid would be produced in relatively large quantities as a byproduct. This allows NADH and FADH2 electron carriers to be oxidized without the electron transport chain and would allow Glycolysis to continue.


8 0
4 years ago
______ are chemical messengers secreted by glands. Exocrine glands, such as sweat glands, secrete fluids through ducts. _______
rusak2 [61]

Answers:

Hormones are chemical messengers....

Endocrine glands secrete hormones...

The pituitary gland plays...

is produced by the adrenal glands...

the gland will produce fewer amounts of the hormone...

produce chemicals called paracrine factors...

blood is called the thyroid.

Steroid hormones are synthesized from cholesterol, while nonsteroid hormones are synthesized from modified amino acids and small peptides. Non-steroid hormones are not lipid-soluble and therefore they need to bind to a receptor on a cell membrane; while steroid hormones can diffuse through the cell membrane.

Explanation:

Hormones are signaling molecules synthesized by glands. The endocrine glands include the adrenal glands, pineal gland, thyroid gland, parathyroid gland, pituitary gland, ovaries, testes, pancreas and hypothalamus. The pituitary gland is an endocrine gland that secretes hormones capable of stimulating the adrenal glands in order to produce steroid hormones. Hormone levels are often modulated by negative feedback, by which high-hormone levels reduce their own production. Paracrine factors (also known as growth and differentiation factors) are proteins that can diffuse across small distances in order to induce responses in neighboring cells. The thyroid gland secretes hormones involved in regulating metabolism and growth. Moreover, the thyroid gland also secretes calcitonin that regulates calcium levels in the blood.

8 0
3 years ago
10. Deafness in cocker spaniels is inherited. The allele for deafness (d) is recessive to the allele for hearing (D). Two cocker
notka56 [123]

Answer:

25%

Explanation:

If they are both heterozygous, it means they both have a Dd genotype. If you draw out a punnet square Dd x Dd you end up with the following possible genotypes for the puppy:

DD, Dd, Dd, dd

In order for the puppy to be deaf, it must be dd since deafness is recessive, which is 1/4 (25%)

8 0
3 years ago
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How can you differentiate each units of measurements​
zimovet [89]

Answer:

By they way they work

Explanation:

For ex.

Meter ruler = meters

Measuring cylinder = liters

Measuring flask = liters

And so on

<em>I</em><em> </em><em>HOPE</em><em> </em><em>THIS</em><em> </em><em>IS</em><em> </em><em>WHAT</em><em> </em><em>YOU</em><em> </em><em>ARE</em><em> </em><em>SEATCHING</em><em> </em><em>FOR</em>

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3 years ago
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