What characteristics of estuaries make them good places for fish to lay their eggs?

El Niño causes excessive rains in the Midwestern United States. these rains lead to flooding access the region. Which affects ar

anyanavicka [17]

Answer:

Population loss of small animals, forced migration of some populations and loss of habitat

Explanation:

7 0

3 years ago

A large natural population of sea stars have lived near shore and relatively unchanged for many

Svetlanka [38]

The answer is yes !!!!!!!!!!!!!!!!!

4 0

3 years ago

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Why would it be advantageous to observe mold colonies on an agar plate?

Alika [10]

I think it would be advantageous to observe mold colonies on an agar plate because one is able to observe colony structures, pigmentation, among others. Colony forming units are the individual colonies of bacteria,yeasts or mold. A colony of bacteria or yeast refers to a mass of individual cells of same organism, growing together.

8 0

4 years ago

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Estrogen is most likely to exert its effect by regulating

vekshin1

Answer:

c) expression of genes and production of specific proteins.

Explanation:

Estrogen is a lipid-soluble steroid hormone that diffuses through the lipid bilayer of the plasma membrane of its target cell. The hormone binds to its nuclear receptor and receptor-hormone complex then alters the expression of particular genes.

It triggers transcription of specific DNA sequences into mRNA which in turn enters the cytoplasm and serves as a template for synthesis of specific proteins.

Estrogen is the female sex hormone and stimulates development of secondary sexual characters in females as well as required for maturation of egg.

6 0

3 years ago

In humans, the alleles for unattached earlobes is dominant over the allele for attached earlobes. The allele for dark hair domin

SVEN [57.7K]

First, let's define the alleles:

(Dominant) allele for unattached earlobes is E

Allele for attached earlobs is e

(Dominant) allele for dark hair is H

Allele for light hair is h

Heterozygous would mean that for both sets of alleles, they will be EeHh.

Now for a Punnett Square:

EH Eh eH eh

EH EEHH EEHh EeHH EeHh

Eh EEHh EEhh EeHh Eehh

eH EeHH EeHh eeHH eeHh

eh EeHh Eehh eeHh eehh

These are all the possibilities for the parents' offspring. Since the square is 4x4, then the number of genotypes is <u>16</u>.

<u>Now for the probabilities of each genotype</u> (the amount of times a certain genotype appears divided by the total number of genotypes):

EEHH: $\frac{1}{16}$

EEHh: $\frac{2}{16}$

EEhh: $\frac{1}{16}$

EeHH: $\frac{2}{16}$

EeHh: $\frac{4}{16}$

Eehh: $\frac{2}{16}$

eeHH: $\frac{1}{16}$

eeHh: $\frac{2}{16}$

eehh: $\frac{1}{16}$

(If you ever want to check if your probabilities are off, just add them together and they should add up to the total!)

Hope this helps! :)

6 0

3 years ago