How are sperms cells adapted for their function?

What are companion cells and state their function?

What are guard cells? What is their function?

When 16 cells are formed from a single cell, how many times cells divide and how many cells are formed in the 3rd generation?

Ecology at the level is essentially physio- logical ecology which tries to understand how different organisms are adapted to their environments.

The teacher said that egg cells are lager than sperm cells. What is the reason for this ?

Look at the following cartoon of a cell. Find out the functions of cell organelles

What is cell membrane? What is its function?

Why are egg cells large than sperm cells? Choose the option you think is right.

Why are egg cells larger than sperm cells? Choose the option you think is right. ( )