Excretion

The structural and functional unit of Kidney is

• NEURON

• NEPHRON

• NUCLEUS

• NONE OF THESE

Nitrogenous waste products are eliminated mainly as -

• urea in tadpole and ammonia in adult frog

• ammonia in tadpole and urea in adult frog

• urea in both tadpole and adult frog

• urea in tadpole and uric acid in adult frog

• a

• b

• c

• d

Tags

NGSS.HS-LS1-3

• a

• b

• c

• d

• a

• b

• c

• d

Which point is incorrect regarding Flame cells ?

• excretory organ in flatworms

• Helps in osmoregulation

• other name is Nephridia

• tubular structure

• a

• b

• c

• d

S 1 : Many bony fishes, aquatic amphibians and aquatic insects are ammonotelic in nature.

S 2: Ureotelism and uricotelism help in conservation of water and needed for terrestrial adaptation.

• S 1 is correct but

  S 2 is incorrect

• S 1 is incorrect but S 2 is correct

• Both statements are correct

• Both statements are incorrect

1 . Towards the centre of the inner convex surface of the kidney is a notch called hilum through which ureter, blood vessels and nerves enter.

2. Each kidney of an adult human measures 10-12 cm in length with an average weight of 120- 170 g

3. Nephron is simple tubular structure .

4.Blood from the glomerulus is carried away by an afferent arteriole.

• 3 statement are correct

• 2 statement are incorrect

• 3 statement are incorrect

• 2 statement are correct

Which one is not a function of skin.

• Helps regulate body temperature.

• Eliminate wastes.

• Gather information about the environment.

• Produce Vitamin C.