Protein present in silk fibre is

• caesin

• keratin

• elastin

• fibroin

The reabsorption of water in the kidney is under the control of

• LH

• ADH

• STH

• ACTH

Movements by pseudopodia of Amoeba are due to change in

• pressure

• atmosphere

• temperature

• viscosity

Solenocytes are associated with

• respiration

• digestion

• excretion

• nutrition

In sea anemone, the symmetry is

• radial

• bilateral

• spherical

• absent

Which vitamin should not be stored?

• Calciferol

• Retinol

• Niacin

• Ascorbic acid

The cavity of diencephalon is known as

• I ventricle

• II ventricle

• III ventricle

• iter

From outer to inside the sequence of three bones present in the middle ear of mammals is

• malleus, stapes and incus

• stapes, malleus and incus

• malleus, incus and stapes

• incus, malleus and stapes

Moulting hormone is secreted by

• corpora cardacum

• corpora allata

• neurosecretory hormone

• prothoracic gland

Compond squamous epithelium is found in

• stomach

• intestine

• trachea

• pharynx