Which of the following is not correct about human cell?

A. The basic unit of living thing is the human cell

B. All living organisms are either single or group of cell(s)

C. All the cells in organism are the same

D. There is no life apart from the in cell

Which organ removes the largest the largest quantity of water from the blood?

A. lung

B. intestine

C. kidney

D. skin

In cold condition the mammalian body reacts in the following ways except

A. shivering of the body

B. dilation of the capillaries supplying blood to the skin

C. constriction of blood capillaries in the skin

D. increased rate of chaemical changes in the body

The glomerular filtrate contains the following substances except

A. water

B. urea

C. blood corpuscles

D. glucose

Which of the following endocrine glands is a master gland?

A. Pituitary gland

B. Thyroid gland

C. Pancreas

D. Ovary

The endocrine gland secreting hormone that induces the thyroid gland to produce more thyroxine is

A. islets of Langerhans

B. adrenal gland

C. pituitary gland

D. parathyroid gland

The part of the nervous system that interprets blinking of the eye is the

A. spinal cord

B. cerebrum

C. hind brain

D. olfactory lobe

Which of the following is the function of the iris of the mammalian eye?

A. closes and opens the eye

B. Absorbs dangerous rays from sunlight

C. regulates the amount of light entering the eye

D. bringing light rays to focus on the retina

The layer of light-sensitive cells in the human eye is called the

A. cornea

B. sclerotic layer

C. retina

D. conjunctiva

Placentation of plants is best described as the

A. arrangement of ovules in the ovary

B. arrangement of fruits on the branches

C. development of ovules in the ovary

D. formation of the pericarp from the ovary wall