How do populations respond to external stimuli?

1 answer:

7 0

Receptors are groups of specialised cells. They detect a change in the environment stimulus. In the nervous system this leads to an electrical impulse being made in response to the stimulus. Sense organs contain groups of receptors that respond to specific stimuli.

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If CO2 is increasing but ethanol is not increasing, what is occurring?

hodyreva [135]

Answer:

Both the products of yeast fermentation, ethanol and CO2, act as product inhibition. Its not toxic, but CO2 will inhibit further fermentation activity of culture yeast.. Hello there. ... Its not toxic, but acid produced during fermentation, will increase the H+ ions in ur media which will hinder further yeast growth.

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3 years ago

A diploid cell in a plant undergoes chromosome duplication but fails to divide properly, initiating a tetraploid (4n) branch. Th

-BARSIC- [3]

Answer:The tetraploid - containing 8 single chromosome (4n) flower produces 2n egg and sperm (gametes) and may then be able to self-pollinate to produce fertile 4n offspring.

Explanation:

The mitotic polyploidy stages explains how to make a fertile polyploid hybrid

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3 years ago

In the genetics lab, you crossed your favorite corn (rr red) to an unknown type of corn. you counted kernel colors and found bot

goldenfox [79]

The unknown type of corn had to be yellow.

There were offspring that were red and yellow.

The red corn only has recessive alleles (r and r) so, the yellow alleles( R) didn't came from this type. They came from a yellow type corn.

And since the offspring were NOT all yellow (the dominant color) we know that the yellow corn was heterozygous for the color trait (Rr).

50% red (rr)
50% yellow (Rr)