Hyaline cartilage is firm but slightly elastic with clear matrix. It is present in larynx, trachea, bronchi and nose.
Sweat is secreted by sweat glands and helps in regulating body temperature.
Humerus is the bone of the upper arm (not hind leg).
Yellow elastic fibrocartilage found in pinna is also found at the tip of the nose.
Ciliated epithelium lines the inner surface of bronchioles and fallopian tubes.
Nerve cells are highly excitable cells specialised for impulse conduction.
They are structural and functional units of nervous tissue.
Male frogs have vocal sacs and copulatory pad on first digit of forelimbs.
Bulging eyes, webbed digits and skin coloration are common in both sexes.
A (hepatic portal system), C (ureters and oviducts open separately in females), E (sinus venosus joins right atrium) are correct.
B is wrong (10 pairs of cranial nerves).
D is wrong (optic lobes are in midbrain).
In pseudocoelomates, the body cavity features mesodermal tissue along the body wall but lacks mesodermal tissue towards the alimentary canal.
Tight junctions form a seal between cells preventing passage of fluids and molecules between them.
Collateral gland (secretes ootheca) and Spermatheca are present in female cockroaches.
Mushroom gland, anal styles and phallic gland are male structures.
