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denis23 [38]
4 years ago
15

1. What is a tornado?

Biology
1 answer:
ira [324]4 years ago
5 0

Answer:

A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud.

Explanation:

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Palisade mesophyll and guard cells. 13. Remembering the function of chloroplasts, in which part(s) of the leaf is photosynthesis taking place?

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A(n) <br> is a group of cells that work together to perform a common function.
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tissue

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0. Summarize the effects of progesterone and estrogen
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Answer:

Estrogen and progesterone are both involved in preparing the endometrium for embryo implantation. Estrogen helps to ensure conception by increasing the amount of secretory glands in the uterus. Estrogen also increases blood supply to the endometrium.

Progesterone is crucial for embryo implantation and maintenance of pregnancy. Progesterone also enlarges secretory glands that produce carbohydrates, proteins and mucin that are required for embryo nourishment before implantation. Progesterone stabilizes endometrial muscles to prevent them from contracting during pregnancy.

Explanation:

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  • Estrogen is secreted during the follicular phase of the menstrual cycle that promotes the growth and maturation of follicles in the ovary.
  • Estrogen also induces oestrous behavior in females.
  • Secreted by the corpus luteum, progesterone is also a steroid hormone, responsible for implantation of the embryo in the uterus.
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PLEASE HELP!!!!!!What do we call cells that are differentiated and have a special job
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C, they are specialized
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Can anyone please answer this ?
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It should be B.

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