NEET BIOLOGY

Detailed explanation-1: -Most protists are aquatic organisms. They need a moist environment to survive. They are found mainly in damp soil, marshes, puddles, lakes, and the ocean.

Detailed explanation-2: -Nearly all protists exist in some type of aquatic environment, including freshwater and marine environments, damp soil, and even snow. Several protist species are parasites that infect animals or plants. A few protist species live on dead organisms or their wastes, and contribute to their decay.

Detailed explanation-3: -Protists live in the water because by the water, protists get many advantages like in metabolism, reproduction and its ecology. Metabolism– Protists are primitive eukaryotes which do not have specialized organelles like RBCs. To complete its oxygen demand, they live in the low oxygen atmosphere like water.

Detailed explanation-4: -Despite the harshness of desiccation, many organisms are able to survive in extremely dry environments. Colpoda species are protists that live in ephemeral bodies of water, such as dry creeks, or even the dew that transiently forms on plants [4].

Detailed explanation-5: -Protists are key stone components of aquatic ecosystems, sustaining primary productivity and aquatic food webs.