alleryExcretion in a leech is carried out by segmentally arranged paired tubules called:
AFlame cells
BMalpighian tubules
CNephridia
DKidneys
Answer & Solution
Correct answer: C. Nephridia
1. Excretion in the leech is carried out by paired tubules in the segments.
2. These segmentally arranged tubules are called nephridia.
3. There are 17 pairs opening by nephridiopores from segments 6 to 22.
4. So nephridia is the correct answer.
5. Option D kidneys are the excretory organs of the rabbit, the trap.
6. Option B Malpighian tubules are insect excretory organs, so they are wrong.
7. Option A flame cells belong to flatworms, not the leech.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 13 Structural Organisation of Animals "Excretory System", p.198_
Keep practising Unit 7C1: Evolution & Animal Structural Organisation
Browse all Unit 7C1: Evolution & Animal Structural Organisation questions for AP Biology, or explore more Biology topics.
Related questions
Which pair of features is characteristic of phylum Aschelminthes?An animal has a body plan that is diploblastic, radially symmetrical and lacks a coelom. TWhich of the following is NOT correctly matched with its phylum?Cnidarians that exhibit polyp and medusa alternating in the life cycle (Metagenesis) incluIn sponges the cells lining the spongocoel and canals areThe correct sequence of increasing organisational complexity in Animalia isBioluminescence — the ability of a living organism to emit light — is well-marked in membeParapodia used for locomotion in the aquatic annelid Nereis are best described as