How many chromosomes will be in a gamete if the normal cell has four chromosomes?

Blood pressure is higher in the arteries as a result of

Which of the following organisms is not a protozoan?

When a Spirogyra filament is placed in a concentrated salt solution for 30 minutes, the cell would become

Water and salts are both lost from the human body in

The structure of the cell membrane is a

Which of the following cells is a specialized cell?

Which of the following features could be used to determine the growth of a seedling?

A plant that commonly undergoes vegetative propagation by means of leaves is