Question

What are some examples of Eukarya?

Answer 1

Hint: Eukarya is a domain that contains multicellular organisms that are visible. In these organisms, the nucleus is enclosed within a definite nuclear membrane. All the membrane-bound organelles are present. According to the five-kingdom classification by Whittaker, eukaryote comprised of 4 kingdoms.

Complete answer:
To solve this question, we must know the divisions of Eukarya and the organisms belonging to them.
The organisms containing eukaryotic cell are known as eukaryotes. They range from microns in size to huge animals like whale, elephant which weights several metric tons. The genetic material of DNA is enclosed within the nuclear envelope. Let us discuss the division of Eukarya and their examples.

We know that WH Whitaker divided the eukaryotes into four major kingdoms. It comprises of plantae, animalia, fungi and Protista.
i) The protists are the simplest eukaryotes which are single cellular organisms. They are capable of doing photosynthesis. They contain all the enveloped organelles. They form colonies. Example- diatoms, euglena.
ii) Fungi- It comprises multicellular heterotrophs. They contain a definite nucleus and all the essential organelles. Example- Saccharomyces.
iii) Plantae- These are photosynthetic autotrophs. They have a tissue level of organisation. For example, all plants are seen around.
iv) Animalia- It is the largest group of eukaryotes that have an organ-system level of organisation. Starting from minute ants to huge elephants all comes under kingdom Animalia.

Note: The fifth domain of the five-kingdom classification contained the prokaryotes. These organisms are single-celled and do not have a definite nuclear membrane. They also lack all the membrane-bound organelles. It comprises organisms like an amoeba.