Which of the following statements reflects the mechanism of natural selection?

Which of the following characteristics do fungi share in common with animals?

An organism that operates at the cellular level of organization, carries out its physiological activities by using its

The mechanism of opening and closing of stomata in plants is based on

Which of the following cell types has the least number of mitochondria?

A typical plant cell is mainly distinguished from an animal cell by the possession of

The organelle which eliminates water from the body of a protozoan is the

Which if the following organisms is not classified as an animal?

Which of the following processes involves diffusion?