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balandron [24]
3 years ago
7

Which of these BEST describes our current understanding about how species evolve over time?

Biology
2 answers:
pantera1 [17]3 years ago
6 0
The answer is <span>D)- Populations evolve as natural selection results in a change in the frequency of alleles within the population over time.</span>
Vitek1552 [10]3 years ago
5 0
<span>Populations evolve as natural selection results in a change in the frequency of alleles within the population over time.

</span>
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Which best describes what happens to stop during photosynthesis​
sertanlavr [38]

Answer:

it dosent stop

Explanation:

yes which best describes what happens to stop during photosynthesis​which best describes what happens to stop during photosynthesis​which best describes what happens to stop during photosynthesis​which best describes what happens to stop during photosynthesis​which best describes what happens to stop during photosynthesis​which best describes what happens to stop during photosynthesis​which best describes what happens to stop during photosynthesis​which best describes what happens to stop during photosynthesis​

4 0
2 years ago
(06.05 MC) What is the correct order of blood flow from the heart to the lungs in the fetal circulatory system? a. Ductus venosu
marishachu [46]

Answer:

c. Ductus venosus, vena cava, heart, ductus arteriosus, arteries

Explanation:

The circulatory system consists of the heart and blood vessels. In a fetus, the circulation of blood is different from circulation after delivery largely due to the fact that the lungs are not in use, rather, the fetus obtains oxygen and nutrients from the mother through the placenta and the umbilical cord.

Blood from the placenta is carried to the fetus by the umbilical vein. While some of this blood enters the fetal ductus venosus and is carried to the inferior vena cava, some others enter the liver. The blood from the inferior vena cava then moves into the right atrium of the heart. The foramen ovale, an opening between the right and left atrium in the fetus directs most of the blood flow from the right into the left atrium, thereby, bypassing pulmonary circulation. Most of the blood from the right atrium flows into the left ventricle and is pumped through the aorta to the rest of the body.  

Some of the blood from the right atrium however, enters into the right ventricle and is pumped into the pulmonary artery. The ductus arteriosus which is a special connection between the pulmonary artery and the aorta in a fetus, directs most of this blood away from the lungs and into the arteries.

4 0
3 years ago
What is true about all real machines?
kvv77 [185]

Answer:

I think it's the first one

Explanation:

I don't know though so don't trust me unless someone else says the same thing

3 0
2 years ago
Read 2 more answers
3.Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into playRequire
fredd [130]

Answer:

The correct answer is - Friction occurs irrespective of the state of the matter.

Explanation:

Friction is the force that takes place when there are two different surfaces slide or moves across one another and causes a resistance between surfaces. The friction always takes place opposite direction to the other surface direction of moving.

Pushing a book on a table, pulling a heavy cart on road all are examples of friction. The friction that occurs in liquids and gases is called fluid friction. Thus, the friction takes place irrespective of the state of the matter.

4 0
3 years ago
Need helping naming
Minchanka [31]
This is plant cell I got it from the safari hope it works and I think the other one is an animal cell try searching up the image and try looking the similar shape.

7 0
3 years ago
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