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DiKsa [7]
3 years ago
12

Explain how an organism's circulatory, digestive, or excretory system helps the organism maintain homeostasis

Biology
1 answer:
choli [55]3 years ago
7 0
Circulatory - 
Brings oxygen and nutrients where it is needed, removes toxic chemicals, maintains a stable body temperature

Digestive -
Food and nutrients are absorbed in the small intestine. These nutrients are necessary for other body systems to maintain homeostasis. 

Excretory - 
Removes all waste from the body, kidneys filter chemicals, liver filters toxins
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Suppose the two possible alleles for the height gene are tall and short. If short is recessive to tall, provide the symbol repre
navik [9.2K]

Phenotype - short , Tall

Genotype - tt (short) , TT or Tt (tall)

<u>Explanation:</u>

In Mendelian Genetics, <em>Dominant traits</em> are represented by capital letters and <em>Recessive traits</em> are represented by small letters.

So if height is the character considered, then the traits would be short and tall.

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The alleles of the gene for height are T and t.

The genotype for Tall trait is TT or Tt.

The genotype for short trait is tt.

Therefore, the symbol representation of phenotype (Tall) is TT or Tt and for phenotype (short) is tt.

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3 years ago
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