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>
<span>D) Vaccines allow for building immunity without harmful exposure because not all viruses are safe to be exposed to.</span>
Answer:
Maybe
Explanation:
nucleus;ribosome
because nucleus is cells control house and ribosome responsible for providing protein..
C. Wind, is NOT a biotic factor of a niche. Hope this helps!
Rhythm Salsa resulted from the development of a muscle cell culture technique.
<h3>How to do cell culture?</h3>
To obtain a cell culture, it is necessary to disaggregate the original tissue, which can be by mechanical force or enzymatic process. These cells are grown in an adherent layer in a single layer (monolayer) or in organoid format (3D culture) or in suspension.
With this information we can conclude that rhythm Salsa resulted from the development of a muscle cell culture technique.
Learn more about cell culture in brainly.com/question/1005896
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