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KiRa [710]
4 years ago
9

The heart of amphibians and many reptiles contains a single ventricle, while the mammalian heart consists of two separate ventri

cles that work side by side. What advantage does the mammalian heart provide?
A. It requires very little muscular force to pump blood throughout the body.
B. It allows blood to travel in two directions through heart chambers.
C. It allows blood to be diverted from the lungs when necessary.
D. It separates oxygen-rich blood from oxygen-poor blood.
Biology
2 answers:
romanna [79]4 years ago
3 0

Answer:

Explanation:

D

Eddi Din [679]4 years ago
3 0

Answer:

The answer is D

Explanation:

I did it on pearson and its right

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Hey
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Statements 1 and 4 are true, while 2 and 3 are false.

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3 0
2 years ago
Can somebody give me the answer for these...
labwork [276]

Answer:

1. Life cycle of a cell starts from

G1 phase - S phase (synthesise phase) - G2 phase - mitosis.

2. By mitosis bcoz it restore nucleo cytoplasmic ratio means ploidy of cell remain same.

3. Bcoz of transformation of normal cells into cancerous cells by Carcinogens present in tobacco.,drugs .etc

4 mitosis occurs in plants animals

Binary fission occurs in bacteria and other single celled organism.

.

Both give rise to two daughter cells.

5.sex cells (n) are produced by meiosis from gamete mother cells(2n).

6.in meiosis <em>ploidy</em><em> </em><em>of</em><em> </em><em>cell</em><em> </em><em>become</em><em> </em><em>half</em><em> </em>

<em>Means</em><em> </em><em>diploid</em><em> </em><em>cell</em><em> </em><em>form</em><em> </em><em>haploid</em><em> </em><em>cells</em>

<em>And</em><em> </em><em>4</em><em> </em><em> </em><em>haploid</em><em> </em><em>daughters</em><em> </em><em>cells</em><em> </em><em>are</em><em> </em><em>formed</em><em>.</em><em> </em>

<em>In</em><em> </em><em>mitosis</em><em>,</em><em> </em><em>ploidy</em><em> </em><em>of</em><em> </em><em>cell</em><em> </em><em>remain</em><em> </em><em>same</em><em> </em>

<em>Means</em><em> </em><em>haploid</em><em> </em><em>form</em><em> </em><em>haploid</em><em> </em><em>and</em><em> </em><em>diploid</em><em> </em><em>form</em><em> </em><em>diploid</em><em>.</em><em> </em>

<em>1</em><em> </em><em>cell</em><em> </em><em>form</em><em> </em><em>2</em><em> </em><em>daughter</em><em> </em><em>cells</em><em>.</em><em> </em>

<em>Hope</em><em> </em><em>this helps</em><em> </em><em>you</em><em>.</em><em>.</em><em> </em><em>Frnd</em><em> </em><em>❤️</em>

4 0
4 years ago
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