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morpeh [17]
3 years ago
14

Select all the depositional features that are listed below.

Biology
2 answers:
dangina [55]3 years ago
4 0
The answer is B.river
Annette [7]3 years ago
3 0

B river hope this helps

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A cartilaginous structure between the "throat" and the trachea.
enyata [817]

Answer:

The correct answer is A. The cartilaginous structure between the "throat" and the trachea is the larynx.

Explanation:

The larynx is a tubular organ. The larynx wall is composed of 9 pieces of cartilage. Three are odd (thyroid cartilage, epiglottis and cricoid cartilage), and three pairs (arytenoid, cuneiform and corniculate cartilage). In addition, it communicates the pharynx with the trachea and is in front of it.

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2 years ago
Please help me, im on a pretest..
gayaneshka [121]

Answer:

I would say C. but i don't think it will be

8 0
2 years ago
Rb is an important protein for controlling cell proliferation by blocking entry into S phase. How does it exert its effect?
amid [387]

Answer:

The main function of the RB protein is to inhibit the transition from the G1 to S phase. Its activity depends on its phosphorylation state: if RB is not phosphorylated (active state), it is bound to the transcription factor E2F, preventing its translocation to the nucleus and the activation of genes necessary for DNA synthesis; and if it is phosphorylated, by cyclin-CDK complexes, E2F is released and cell proliferation occurs.

Explanation:

Retinoblastoma (Rb) was the first tumor suppressor described and, as we know today, mutations in its structure determine a large number of cancers. Structurally, we speak of a large and multifunctional protein; which is organized in different domains. The activity of this protein is regulated, mainly, by phosphorylation at multiple sites described over the years and is involved in control mechanisms of the cell cycle, apoptosis and senescence.

5 0
3 years ago
Briefly explain what clues to look for to tell if a cell is in each of the following phases of mitosis:
k0ka [10]

Answer:prophase----the chromosomes shorten and thicken.the nuclear membrane has open up and the nucleolus has disappeared

Metaphase----the chromosomes migrate to the central plane of the cell and attach to the spindle fibres microtubules

Anaphase---the chromatids of each chromosomes part and move towards opposite poles of the spindle as the spindle fibres shorten

Telophase----the chromatids are in the polar end of the spindle .the spindle breaks down,the centrioles replicate,the nuclear membrane is reformed,the chromosomes gradually uncoil.

Explanation:

6 0
3 years ago
Name those blood vessels help plzzz sheb quick i’ll put branloest
Flauer [41]

Answer:

Y = Aorta.

W = inferior Vena cavae.

Z= Pulmonary vein

X = Pulmonary organ.

Explanation:

Hope this helped have an amazing day!

5 0
3 years ago
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