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love history [14]
3 years ago
15

Can somebody help me out with this question because I’m really confused??

Biology
1 answer:
topjm [15]3 years ago
3 0

It’s a it starts to kick

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Select the correct answer.
blondinia [14]

Answer:

c

Explanation:

troposhere bc tropical

8 0
3 years ago
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From which of the following does the right atrium receive blood?
olga2289 [7]

The right atrium receives blood returning from others parts of the body through the superior vena cava and the inferior vena cava.  

Explanation:

The pathway of circulation begins in the right atrium which receives the carbon dioxide-rich deoxygenated blood returning through the systemic circulation.  

The deoxygenated blood from regions superior to the heart, i.e., the head, neck, shoulder areas are collected through the superior vena cava and that from the parts inferior or lower to the heart like visceral organs, extremities, trunk, hip etc are brought through the inferior vena cava.

Both these venous systems (superior and inferior) fill the right atrium.

The right atrium then pumps the deoxygenated blood to the right ventricle via the tricuspid valve.

The right atrium is filled with blood during diastole.

3 0
4 years ago
These chemical messengers of the body are produced by endocrine glands
OlgaM077 [116]

A. Hormones

secreted directly into the blood

3 0
3 years ago
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Identify the characteristics of protists.
Step2247 [10]

Answer:

multicellular

unicellular

autotrophic

heterotrophic

mobile

stationary

eukaryotic

Explanation:

5 0
3 years ago
Aliens from the planet Zorg have 100 chromosomes in their diploid cells. If a diploid alien cell enters meiosis, how many chromo
stepan [7]

Answer:

Chromosomes at the conclusion of Meiosis I  - 50

Double-helical molecules of DNA at the conclusion of Meiosis I - same as that of parent cells

Explanation:

Given

Number of chromosomes in the diploid cells of Aliens from the planet Zorg = 100

In the Meiosis I cell division , a cell divides to produce two diploid cells with exactly the same amount of  DNA  as that of original parent cell.

However, the number of chromosomes is reduced to  by half at the end of meiosis I

After Meiosis II, four haploid cells are produces with half the amount of DNA  as that of original parent cell

Thus,

Chromosomes at the conclusion of Meiosis I  - 50

Double-helical molecules of DNA at the conclusion of Meiosis I - same as that of parent cells

8 0
3 years ago
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