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Burka [1]
3 years ago
14

Sponges (phylum: Porifera) are animals that possess feeding cells called collar cells. These cells have a central flagellum surr

ounded by a collar of microvilli. The collar filters organic matter out of the water column. Which protist shares a more recent common ancestor with the poriferans
Biology
1 answer:
Mademuasel [1]3 years ago
5 0

Answer: Choanoflagellates

Explanation:

Protists are organisms that have both plant and animal like characteristics. Some protists develop more plant like characteristics and others more animal like characteristics. Choanoflagellates are the protists which looks like animals called sponges. These protists are single celled organisms. Their function is similar to collar cells of the sponges that is they produce current in water that draws water and food particles via the body of sponges and they filter the food particles through their microvilli.

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Answer:

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Explanation:

The circulation of blood in the closed circulatory system flows through blood vessels. These blood vessels show structural differences in response to the pressure exerted by the blood on the surrounding medium.

The blood pressure varies in the circulatory system because the heart pumps the blood with a greater force, so the blood vessel called arteries which carries the blood from the heart posses thicker walls.

The blood pressure reduces until the blood reaches the organs, the blood pressure reduces. Thus the blood in the capillaries has lower pressure.

When blood exits from the organs back to the heart, then the blood pressure is highly reduced as a result, the veins carry the blood with lower pressure.

Thus, arteries→capillaries→veins are the correct answer.

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