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vlada-n [284]
3 years ago
15

When you exercise you generate excess heat and your body temperature rises. blood vessels dilate in the skin, warm blood flows c

loser to the body surface, and you lose heat. this is an example of?
Biology
1 answer:
zalisa [80]3 years ago
3 0

Answer:

The  correct answer is negative feedback.

Explanation:

Negative feedback is considered the mechanism that frequently regulates biological reactions in the body. Negative feedback helps reduce the stimulation of some processes, such as controlling the temperature.

It can be seen that negative feedback works by redirecting some processes that go to one point directs a degree of that process to a different location.

In this case, on the temperature, the feedback is responsible for putting the system to work from the moment it starts to sweat using the different processes to regulate the temperature. This process uses help from enzymes and body pathways.

<em>I hope this information can help you. </em>

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Phenotype of offspring:—-?<br> Genotypes of offspring:—-?<br> Lol I need help
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Answer:

The correct answer is -

The phenotype of offspring (first cross or F1): 100% tall

The genotype of offspring (first cross or F1 - 100% Tt or heterozygous)

The phenotype of offspring in F2 (F1 × F1) - 3:1 (3 tall: 1 dwarf)

The genotype of offspring in F2 (F1 × F1) - 1:2:1 (One dominant tall: two heterozygous tall: one dwarf)

Explanation:

In this experiment of Mendel, Mendel selected the pea plant as it has various characters, short life span, and easy to breed. For this, he used two true breed lines, tall plants that had dominant allele TT and dwarf plant tt (recessive). In presence of the dominant allele, recessive alleles do not show their characteristics and only express if both alleles are recessive.

In the first cross of TT and tt

Gametes: T and t

offspring: Tt

the offsprings are all tall and heterozygous which means one dominant and one recessive allele.

second cross or F1 × F1

Tt × Tt

gametes: T, t and T, t

offspring: TT, Tt, Tt, tt

Thus,

The phenotype of offspring (first cross or F1): 100% tall

The genotype of offspring (first cross or F1 - 100% Tt or heterozygous)

The phenotype of offspring in F2 (F1 × F1) - 3:1 (3 tall: 1 dwarf)

The genotype of offspring in F2 (F1 × F1) - 1:2:1 (One dominant tall: two heterozygous tall: one dwarf)

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