As the specimen is in perfect focus, we should turn the knob of

A component of plant cell that is absent in animal cell is known as

A. cell membrane

B. cytoplasm

C. nucleus

D. Cellulose

For lowering the body tube until the objective is 0.25 inches of the object, we use

A. illumination

B. Stage

C. diaphragm

D. coarse focus

The smallest cells present in the human body are

A. red blood

B. brain cells

C. egg-cell

D. nerve

The green pigment in the leaves and stem of plants, that absorbs sunlight for the process of photosynthesis is known as

A. chlorophyll

B. cellulose

C. cytoplasm

D. glucose

The protective layer that covers the dermis is known as

A. epidermis

B. epithelial

C. muscle

D. nerve