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enyata [817]
3 years ago
10

What is the difference between the atrium and the ventricle in the heart?

Biology
1 answer:
aalyn [17]3 years ago
5 0

The two atria are thin-walled chambers that receive blood from the veins. The two ventricles are thick-walled chambers that forcefully pump blood out of the heart. The right atrium receives deoxygenated blood from systemic veins; the left atrium receives oxygenated blood from the pulmonary veins.

Hope this helps!

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What are the four types of parenting styles?
Serjik [45]

Answer:

strict, fun, laid back, weird

Explanation:

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3 years ago
Which statement explains why antibiotics do not break down cell walls in plants?​
const2013 [10]

Answer: Sulfa antibiotics target a specific enzyme that inhibits bacterial growth. ... Viruses are unaffected by antibiotics because they do not have peptidoglycan cell walls or ribosomes, and they do not replicate their own DNA. Bacteria can become resistant to antibiotics through the process of selection and evolution.

Explanation:

8 0
3 years ago
Why do the number of organisms in a group change from the first step to the last step of a dichotomous key?.
Anastaziya [24]

Firstly the question is incomplete as an option is not there.

Why do the number of organisms in a group change from the first step to the last step of a dichotomous key?

a. The number of organisms decreases because the number of common characteristics of the organisms in a group increases.

b. The number of organisms increases because the number of common characteristics of the organisms in a group increases.

c. The number of organisms is cut in half because the number of common characteristics of the organisms in a group decreases by half in the last step.

d. The number of organisms stays the same because the number of common characteristics of the organisms in a group decreases by half in the last step.

The correct answer is B. The number of organisms increases because the number of common characteristics of the organisms in a group increases.

The most common key for the identification of organisms is a dichotomous key, the number of organisms in a group change from the first step to the last step of a dichotomous key as the no. of organisms increases and forms several groups of species and genus.

<h3>What is the use of the dichotomous key?</h3>

The use of dichotomous keys are :

  • contrasting characters
  • dividing organisms
  • eliminating .

Hence concluded that the dichotomous key has a number of organisms increases because the number of common characteristics of the organisms in a group increases.

To learn more about dichotomous keys refer to the link :

brainly.com/question/1281957

4 0
2 years ago
Which statement must be true of their individuals if two populations are no longer the same species?
Jlenok [28]

Answer:

wouldn't it he A

Explanation:

because they are not the same species

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3 years ago
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