Question

Which of the following is characteristic of ciliates? A. They can exchange genetic material with other ciliates by the process of mitosis. B. They are often multinucleate. C. They use pseudopods as feeding structures. D. Most live as solitary autotrophs in fresh water.

Answer 1

Ciliates are characterized by being multinucleate due to the presence of a smaller micronucleus and a larger macronucleus.

Step-by-step explanation:

The characteristic of ciliates that is correct from the provided options is B. They are often multinucleate. Ciliates like Paramecium are known for having a complex cellular structure with distinct nuclei for different functions. They have a smaller micronucleus that is involved in sexual reproduction through a process called conjugation, and a larger macronucleus responsible for controlling non-reproductive cellular functions and expressing the genetic traits. Ciliates use cilia for locomotion and feeding rather than pseudopods. They reproduce sexually through conjugation, not mitosis, and while they live in fresh water, they are not autotrophs but are heterotrophs that feed primarily on bacteria and other small organisms.

Answer 2

The correct answer is option B.

Explanation:

The ciliates are a group of the organism of protozoans characterized by the presence of cilia, a hair-like structure, that appears to be the same as the eukaryotic flagella.

These organisms are shorter in size and found in high numbers. They normally have more than one nuclei so known as multinucleate. They found in the freshwater.

Thus, the correct answer is option B.