2 years ago

1.) Why does menstruation begin?2.) How long does the menstrual cycle usually last?

1 answer:

8 0

Answer:

1.) Why does menstruation begin?

A.) Period happens because of changes in hormones in the body.

2.) How long does the menstrual cycle usually last?

A.) the menstrual cycle lasts 21 to 35 days while bleeding between 2 to 7 days

<u>-TheUnknownScientist</u>

You might be interested in

lana66690 [7]

Answer:

handle and the dial is the correct answer

5 0

2 years ago

slavikrds [6]

Answer: The slope of the line that passes through the points (-4, -4) and (4,8) is 3/2

5 0

2 years ago

pav-90 [236]

Answer:

second one

Explanation:

the second one is aerobic respiration which creates alot of energy

4 0

2 years ago

podryga [215]

DNA and RNA are both made up of monomers called nucleotides. They also both have three nitrogenous bases: Adenine, Cytosine, Guanine.

8 0

2 years ago

tresset_1 [31]

Parenchyma cells synthesize and store organic products.

4 0

3 years ago

1.) Why does menstruation begin?2.) How long does the menstrual cycle usually last?​