3761. All of the following coelenterates show alternation of generation except:
✅ A. Hydra
Option A: Hydra Option B: Obelia Option C: Aurelia Option D: None of these Correct Answer : Hydra Read more
Author: Sheeraz Ahmed – Page 189
3762. 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
3763. Pseudocoelem develops from____________?
✅ C. Blastocoel
Option A: Blastopore Option B: Plastoquinone Option C: Blastocoel Option D: Splitting of mesoderm Correct Answer : Blastocoel Read more
3764. 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
3765. 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
3766. 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
3767. In sponges fertilization takes place in____________?
✅ B. Mesenchyme
Option A: Ectoderm Option B: Mesenchyme Option C: Endoderm Option D: Uterus Correct Answer : Mesenchyme Read more
3768. 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
3769. 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
3770. Which of the following fishes contained lungs?
✅ D. Dipnoi
Option A: Lamprey Option B: Perch Option C: Plaice Option D: Dipnoi Correct Answer : Dipnoi Read more