2801. Excretory system of platyhlminthes consists of___________?
✅ B. Flame cells
Option A: Nephridia Option B: Flame cells Option C: Malpighian tubules Option D: Nephrons Correct Answer : Flame cells Read more
Author: Sheeraz Ahmed – Page 141
2802. Pseudocoelem develops from____________?
✅ C. Blastocoel
Option A: Blastopore Option B: Plastoquinone Option C: Blastocoel Option D: Splitting of mesoderm Correct Answer : Blastocoel Read more
2803. Exoskeoeton of coelenterates terates is made up to__________?
✅ A. Calcium
Option A: Calcium Option B: Silica Option C: Chitin Option D: Both A & B Correct Answer : Calcium Read more
2804. All of the following are true for Platyhelminthes except____________?
✅ C. Coelomate
Option A: Flatwarms Option B: Triploblastic Option C: Coelomate Option D: Bilateral symmetry Correct Answer : Coelomate Read more
2805. Nervous system of nematods consists of?
✅ D. All of these
Option A: Ventral nerve cord Option B: Dorsal nerve cord Option C: Lateral nerve cord Option D: All of these Correct Answer : All of these Read more
2806. Which of the following are motile zooids in cnidarians?
✅ B. Medusae
Option A: Polyps Option B: Medusae Option C: Both of these Option D: None of these Correct Answer : Medusae Read more
2807. Mammals became dominant in__________?
✅ D. Cenozoic era
Option A: Proterozoic era Option B: Mesozoic era Option C: Paleozoic era Option D: Cenozoic era Correct Answer : Cenozoic era Read more
2808. Notochord is present throughout life in___________?
✅ B. Cephalochordates
Option A: Urochordates Option B: Cephalochordates Option C: Chordates Option D: Vertebrates Correct Answer : Cephalochordates Read more
2809. Body is eel like in___________?
✅ A. Cyclostomata
Option A: Cyclostomata Option B: Chondrichthyes Option C: Osteichthyes Option D: None of these Correct Answer : Cyclostomata Read more
2810. Body is globular in_________?
✅ B. Sea Urchin
Option A: Cake urchin Option B: Sea Urchin Option C: Sea cucumber Option D: Brittle star Correct Answer : Sea Urchin Read more