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Marat540 [252]
3 years ago
13

13. The walls of arteries include a

Biology
2 answers:
mixas84 [53]3 years ago
7 0

Answer:

smooth

Explanation:

The walls of arteries include a  smooth muscle layer.

RoseWind [281]3 years ago
5 0

Answer:

smooth

Explanation:

Arteries are blood vessels that guarantee the transport of blood from the heart to the different tissues of the body, thus allowing the supply of oxygen and nutrients to all cells. These vessels are quite resistant and have some characteristics that allow them to be distinguished from other blood vessels. In addition, the artery walls are composed of three layers that differentiate between themselves. One of these layers appears as a smooth muscle layer.

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agasfer [191]
<span>The propositions are:
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B. The frame of the car is the digestive system that provides structure and support to the body.
C. The exhaust system of the car is the excretory system that removes waste. 
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E. The oil in the car is the excretory system that protects and coats the body.

The right answer is: C and D
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3 0
3 years ago
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How can natural selection affect a predator-prey relationship in an ecosystem?
Debora [2.8K]
B Nature selection for traits the allow for increased rates of reproduction and survival over traits that don't, is correct.   

A is also correct
7 0
4 years ago
The trapping of heat by carbon dioxide and water vapor is known as the_____.
Orlov [11]
The answer is greenhouse effect
3 0
3 years ago
In sweet pea plants, an allele for purple flowers (P) is dominant to an allele for red flowers (p). Additionally, an allele for
Tatiana [17]

Answer:

P(purple, short) = 3/16

Explanation:

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Short pollen grains require genotype ll

The genotypes are

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5 0
3 years ago
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hodyreva [135]

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4 years ago
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