MCQs Zoology-21 Posted on 2025-11-122025-12-03Author admin 0 Table of Contents Toggle MCQs Zoology-21MCQs Zoology-21 MCQs Zoology-21 1. In animals, the enteron is also known as __________ Blastula Mesoderm Gastrula Archenteron 2. A four-chambered heart is first seen in ________ Crocodilians Amphibians Bony fishes Snakes 3. ————— process help to maintain cellular homeostasis by regulating ion balance Facilitated diffusion Active transport Osmosis Simple diffusion 4. In mammals, hydrochloric acid (HCl) is produced by the glandular cells, specifically the parietal cells, of the ______________________ Pancreas Stomach Rectum Small intestine 5. Metameric segmentation is also known as______________ Serial repetition Metamerism Modular organization Segmentation 6. __________ are the only mammals capable of true flight Sugar Gliders All of these Bats Flying Squirrels 7. Which of the following organisms shows true metameric segmentation? Human Earthworm Starfish Snail 8. Insects are generally divided into __________ orders 20 29 15 35 9. Which of the following is not a lymphocyte? T cell Platelet B cell None of these 10. Which transport mechanism is used by protozoa to move gases like oxygen and carbon dioxide across their cell membrane? Simple diffusion Osmosis Active transport Facilitated diffusion Loading … MCQs Zoology-21
