The pH of protolasm is

• 6.0

• 6.8

• 7.8

• 8.2

Fertilization in earthworm is

• cross fertilization

• combined fertilization

• self-fertilization

• All of the above

Haemoglobin in earthworm is present in

• RBC

• protoplasm

• coelomic fluid

• plasma

First heart sound is produced during closure of

• auriculo-ventricular valves

• eustachian valve

• sinus valve

• seminular valves

From acrosome, which secretes

• hyaluronic acid

• hyaluronidase

• TSH

• fertilizin

Nucleated RBCs are present in which

• Rabbit

• Camel and llama

• Embryo of human

• Both (a) and (b)

Which gland is worked opposite to pressure?

• Adrenal

• parathyroid

• Pineal

• Thyroid

Muscular movements of alimentarey canal are known as

• peristalsis

• diastole

• systole

• muscles contraction

Final excretion in urine of which substance is

• amino acid

• urea

• glucose and glycogen

• uric acid

In motor neuron the impulse following in which direction?

• In two direction

• In one drection

• In all direction

• None of the above