Organisms like protists that can do various processes to
gain
food and
energy are known
as;

The answer is protozoa.

Explanation:

Like cattle, other species are eaten by heterotrophic protists to acquire their nutrition. This protists are called "protozoa," meaning "first animal." Protozoans feed by a mechanism called "phagocytosis," in which they cover and trap their food within a vacuole with their cell membrane.

Hope this helps!

it's unlikely a majority of a large population would agree on issues

hope this : )

but there is no

i guess you forgot putting it.