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3 years ago

10

Which nutrient cycle is most affected by the over-use of ammonia fertilizers on commercial farms, as well as by the accumulation

of waste on cattle farms and feed lots?

2 answers:

Alborosie3 years ago

5 0

<span>Nitrogen cycle is the most affected

</span>

Yuki888 [10]3 years ago

5 0

Nitrogen cycle is most hope it helps :)

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7. In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white

kondor19780726 [428]

Answer:

See the answer below

Explanation:

<em>Genotype is the genetic composition of organisms and a gene is made up of two alleles.</em>

a) Since the allele for black is B, <u>the genotype for black chickens would be BB. </u>

b) Since the allele for white is W, <u>the genotype for white chickens would be WW.</u>

c) Since erminette color is heterozygous,<u> the genotype would be BW.</u>

d) Two erminette were crossed:

BW x BW

BB BW BW WW

i. <em>Probability of having black chick (BB) </em>= 1/4

ii. <em>Probability of having a white chick (WW)</em> = 1/4

iii. <em>Probability of having erminette chicken (BW)</em> = 1/2

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3 years ago

Describe how Schwann cells form the myelin sheath and the neurilemma.

-Dominant- [34]

Answer:

Schwann cells or neurilemma cells are the cells which form the myelin sheath around neuronal axons in the peripheral nervous system (PNS) only.

Neurilemma is the collective term used for cytoplasm and nuclei present around the myelin sheath which helps in the regeneration process of nerves.

A Schwann cell surrounds the axon, invaginate it and the plasmalemma of the Schwann cells joins and from a double membrane structure called mesaxon. This mesaxon starts wrapping the axon in spiral fashion and cytoplasm start condensing into the compact myelin sheath.

7 0

3 years ago

I am trying to determine reactants going into the electron transport chain. Is this right?

irina1246 [14]

Answer:

Yes, this is correct.

Explanation:

In each glycolytic pathway, glyceraldehyde 3-phosphate dehydrogenase produces 1 molecules of NADH as a result of reduction of NAD+.
Pyruvate dehydrogenase converts pyruvate to Acetyl CoA producing 1 molecule of NADH per pyruvate oxidized.
In Kreb's cycle, isocitrate dehydrogenase, alpha-ketoglutarate dehydrogenase, and malate dehydrogenase reactions produce 1 molecule of NADH each. Furthermore, succinate dehydrogenase reaction produces a single molecule of FADH2 per FAD reduced.
Since, we began with 2 molecules of glyceraldehyde 3-phosphate, we multiply the above figures by 2 and get a total of 10 NADH and 2 FADH2.

4 0

2 years ago

What's the answer pleaseee??!!!

Troyanec [42]

Answer:

the first one

Explanation:

So the predicted offspring genotypes are 50% Hh and 50% hh

so there is a 50% chance that they will have no horns and and aa 50% chance that they wont

3 0

2 years ago

Which is an outer planet?

WINSTONCH [101]

Saturn is an outer planet

4 0

3 years ago