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tekilochka [14]
2 years ago
12

Why a female may have two periods in one month?

Biology
1 answer:
Tema [17]2 years ago
7 0

Answer:

The average menstrual cycle is 28 days long but can vary from 24 to 38 days. If a menstrual cycle is shorter, a person can have a period more than once a month.

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What type of plate boundary is shown
4vir4ik [10]
In the textbook its called a convergent boundary
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3 years ago
What are he similarities and differences among a lake, wetland, and a river?
SOVA2 [1]
Essentially wetlands<span> are the transition </span>between<span> dry land and water (streams, </span>rivers,lakes<span>, and coastlines), </span>wetlands<span> take many forms including the familiar marshes, swamps and bogs. Yet, not all </span>wetlands<span> are "wet" year round. These "drier end"</span>wetlands<span> also perform significant </span>wetland<span> functions. 
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Which process must the cell undergo to have genetically different cells at the end of cell division?
Ksenya-84 [330]
 A cell must undergo the process of meiosis in order to have genetically different cells at the end of cell division. Meiosis produces four daughter (haploid) cells, each of which is genetically distinct from the parent cell from which they arose. 
3 0
3 years ago
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Please help on #21 I’ll mark you as brainliest if correct
Marina CMI [18]

Answer:

I think the answer is J: desert.

Explanation:

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5 0
3 years ago
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When is facilitated diffusion necessary?
Evgesh-ka [11]

Answer:

When the molecules are too large.

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6 0
2 years ago
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