Question

Examples of multicellular organisms are
a. Algae, Bacteria
b. Bacteria and fungi
c. Bacteria and viruses
d. Algae and Fungi

Answer 1

Hint: When in an organism the group of cells collaborate together to carry out various life processes is known as multi celled.

Complete answer:
As the name suggests, Multi means many and cellular means cells. Therefore, organisms that are made up of many cells are known as multicellular organisms. It includes all plants, animals and fungi.

Additional Information
There are two types of organisms present on the basis of the number of cells. They are as follows:
Unicellular Organisms: These organisms are those which are single-celled and all the processes are carried by that single cell only. Example of such cells is Bacteria, Protozoans (Amoeba) etc
Multicellular organisms: The organism in which different cells (differ in shape, size etc) are specialized to do one major function or they can group together to perform that function. For example, Neurons are the type of cell present in humans and exhibit the function of transmission of a nerve impulse.

Characteristics of Multicellular Organism:
1. These organisms are complex in their structure as well as in functions.
2. We are able to see them with our naked eyes without any instrument.
3. Their cells combine to form tissues, tissue form organs and at last an organ system which is specialised for a particular process or function like digestion, respiration, circulation etc.
4. They show the division of labour.
5. They show growth.

So, the correct answer is ‘Algae and Fungi’.

Note:
1. Division of labour means one task is performed by a particular group of cells.
2. Colonial organisms are different from multicellular organisms as in colonies different individuals join together to form it while the multicellular organism is one individual made of many cells.
3. Humans are considered as the most advanced and complex multicellular organisms.