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Soloha48 [4]
3 years ago
9

Which causes natural selection to occur?

Biology
2 answers:
Serjik [45]3 years ago
6 0

Answer:

c. Presence of predators

Explanation:

Ainat [17]3 years ago
3 0

Answer:

Natural selection can occur by A

Explanation:

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Valence is the number of electrons an atom must gain or lose in order to _____ its outer energy level or have a stable octet in
sdas [7]
The correct answer is complete.

<span>Valence is the number of electrons an atom must gain or lose in order to complete its outer energy level or have a stable octet in its outer shell. In the first energy level it can have only 2, but later levels can have 8, that is, an octet.</span>

6 0
2 years ago
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why is it important to understand plant physiology in crop/plant production and productivity?in your discussion make sure that y
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Answer:Knowledge of Seed physiology helps in understanding of different physiological and morphological changes that occur during germination.  By knowing the different inputs requirement of plants (water, nutrients, sunlight) we can easily manage the plant population to get highest yield.

Explanation:

I'm sorry if I didn't get some parts ;-;

6 0
3 years ago
In cats, coat color is an X-linked trait with incomplete dominance. Yellow coat is caused by the allele XT and black coat by the
Goryan [66]

Answer:

The genotype of a black male is XtY

Explanation:

<u>Available data:</u>

  • coat color is an X-linked trait with incomplete dominance.
  • Yellow coat is caused by the allele XT
  • Black coat by the allele Xt.
  • Tortoise coat is caused by the heterozygous condition

So,

<u>females genotypes           females phenotype </u>

  •   XTXT                →        Yellow coat
  •   XtXt                  →         Black coat
  •   XTXt                 →         Tortoise coat

<u>males genotype                    males phenotype</u>

  •   XTY                   →         Yellow coat
  •   XtY                    →         Black coat

Males only carry one X chromosome, so they can only be either black - XtY- or yellow -XTY-.

Females are the only ones that can express the tortoise coat.

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3 years ago
The two basic types of cells found in neural tissue are
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1.) Neurons, they transmit nerve impulses<span>.
2.) </span>Neuroglial cells, non-conducting cells of the nervous tissue.
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The relationship between heredity and environment is
Lilit [14]
Not the same and they is not in a relationship
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3 years ago
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