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STatiana [176]
3 years ago
13

What happens to a zygote after it forms and begins to develop

Biology
1 answer:
Free_Kalibri [48]3 years ago
4 0

In humans, it takes about four days for a zygote to become a  morula  and another three days until the embryo attaches itself to the mother's uterine wall.

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Is The Pamlico Sound a potable water source ? If so , Why ?
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Answer:

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4 years ago
Michael was watching the rain hit the sidewalk in front of his house. After a few minutes, he noticed a change in the precipitat
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i think its  temperature inversion?

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5 0
3 years ago
Which statements describe a bacteriophage? Select all that apply.
Delicious77 [7]

Options:

a.    It is a type of virus that infects bacteria.

b. It is a type of bacteria that infects viruses.

c. It is a virus consisting of a protein coat and a DNA core.

d. It is a bacterial strain consisting of protein and a DNA core.

Answer:

<u>Option-(A, C):</u> It is a type of virus that infects bacteria, and it is a virus consisting of a protein coat and a DNA core.                                                                                                                          

Explanation:

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  1. Lytic cycle,
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5 0
3 years ago
Read 2 more answers
which of the following statements best describes the significance of meiosis in human se*ual reproduction?
guajiro [1.7K]

Answer:

B. Miosis causes an increase in genetic variation because of crossover

Explanation:

6 0
2 years ago
Identify which two of Koch's postulates would most likely not be fulfilled when trying to link a human virus to a particular dis
hammer [34]

Answer:

 A) & B)

Explanation:

A) There are certain viruses that are present in both healthy and disease people.

Example: Polio virus is found in many human but it causes disesease in only 1% of human.

B) Viruses require host machinery for replication so they may not replicate in pure culture.

The postulate C is also violated, the virus may not produce disease in non-human experimental host because of inappropriate animal or vaccinated animal etc. Others exception includes, the same disease may be caused by various organisms and different organisms can also cause the same disease.

3 0
3 years ago
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