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solniwko [45]
3 years ago
8

What is the difference between normal tissue and cancer

Biology
1 answer:
levacccp [35]3 years ago
3 0

Cellular communication is an important aspect in cancer prevention because a group of cells growing rapidly can be recognized and halted before given the chance to grow out of control. It is well known that in a cancerous cell, one of the first mutations to occur is in its ability to communicate with its surroundings. In absence of this characteristic cells are able to grow rapidly and invade surrounding tissues even though they may be receiving, but not processing appropriately, external signals to halt growth.

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Science Experiment: Part 2
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Explanation:

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A strand of mRNA containing the following repeating sequence: AAGAAGAAGAAG. This sequence of mRNA codes for:
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Which statement correctly describes the secretory phase of the uterine (menstrual) cycle?
Ivanshal [37]

Answer:

The correct answer is C: "The secretory phase of the uterine (menstrual) cycle occurs when <em>progesterone stimulates the endometrium to prepare it for implantation".</em>

Explanation:

The luteal phase, also known as a <u>secretory phase </u>or postovulatory phase, has place immediately <em>after ovulation</em>, from 15th to 28th day, and it lasts <em>until the end of the menstrual cycle</em> when bleeding starts again.

During the secretory phase, the <em>follicle</em> in the ovary <em>produces </em><em>progesterone</em> to keep <em>preparing the uterus for a possible pregnancy</em>. If there is no fecundation, estrogen and progesterone levels fall as the follicle reduces. When this happens, the endometrial is eliminated as menstruation and a new cycle begins.

<em>If the ovule is fecundated, </em><em>it occurs implantation</em><em> </em>and follicles continue to produce progesterone and estrogen in high amounts to sustain the endometrial until the placenta is formed.

3 0
4 years ago
Do sea urchins reproduce sexually or asexially
Paha777 [63]
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3 years ago
What do endocrine glands use as Messengers?
Anvisha [2.4K]

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b. hormones

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