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leonid [27]
3 years ago
8

A scientist is comparing the outer layer of an onion cell to the outer layer of a human cheek cell. What is unique about the out

er layer of the onion cell compared to the cheek cell?
in contains proteins


it contains cellulose


it contains nucleic acids


it is selectively permeable
Biology
1 answer:
Minchanka [31]3 years ago
3 0

Answer:it contains cellulose

Explanation:

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In rabbits, short hair (S) is dominant over long hair (s). What genotype and phenotype ratios are expected from a cross between
irga5000 [103]

Answer:

Answer:

Genotype                  Phenotype                      

SS                 1/4          Short hair         3/4

Ss                 2/4         Short hair          3/4

ss                  1/4          Long hair          1/4

Explanation:

Both are heterozygous for the trait so we can expect that the cross would be:

Ss x Ss

   S     s

S  SS   Ss

s   Ss   ss

So the resulting off-spring would have the following genotype and phenotype:

1 out of 4 will have a genotype of SS.

2 out of 4 or half will have a genotype of Ss.

1 out of 4 will have a genotype of ss.

But because short hair is dominant the phenotype ratios would differ because Ss and SS would express short hair, so we add up their ration:

Short hair: 1/4 + 2/4 = 3/4

Long hair:  1/4

So in summary:

Genotype                  Phenotype                      

SS                 1/4          Short hair         3/4

Ss                 2/4         Short hair        

ss                  1/4          Long hair          1/4

Explanation:

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When population growth increases in an area, what is happening to the birth rate and age structure of that population?
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Answer:

increasing birth rate with a greater number of young organisms

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