Question

1. Answer the following questions in 10-20 words:
a) Define unicellular organisms.
b) What is external fertilisation? Name one organism that exhibits it.​

Answer 1

Answer:

unicellular is a cell consisting of a single cell

Answer 2

Explanation:

1.A unicellular organism, also known as a single-celled organism, is an organism that consists of a single cell.

2.External fertilization is the fertilization where the male and female gametes fertilizes outside the female body.

Example:Frog,fish