NEET BIOLOGY

Detailed explanation-1: -Animal-like protists are called protozoa (proto=first; zoia=animal) because they were considered primitive animals. They are heterotrophs because they cannot make their own food.

Detailed explanation-2: -Animal-Like Protists: Protozoa They are animal-like because they are heterotrophs, and are capable of moving. Although protozoa are not animals, they are thought to be the ancestors of animals.

Detailed explanation-3: -Protozoans are typically microscopic, single-celled organisms. Unlike bacteria and archaea, they are eukaryotic. This means that they have a distinct nucleus. Also, unlike single-celled algae, protozoans cannot make their own food, so they eat other organisms.

Detailed explanation-4: -Animal-like Protists Protozoa are single-celled eukaryotes that share some traits with animals. Like animals, they can move, and they are heterotrophs. That means they eat things outside of themselves instead of producing their own food.

Detailed explanation-5: -Some make their own food, but most take in or absorb food. Most protists move with the help of flagella, pseudopods, or cilia. Some protists, like the one-celled amoeba and paramecium, feed on other organisms. Others, such as the one-celled euglena or the many-celled algae, make their food by photosynthesis.