Biology Practice: Classification of Animals (Mock Test 4 - Expert)
1. Identify the phylum: "Triploblastic, Bilaterally symmetrical, possesses a True Coelom (Schizocoelom) and Metameric segmentation."
2. An animal shows "Bilateral symmetry" as a larva but "Radial symmetry" as an adult. Which phylum does it belong to?
3. Which of the following is the correct evolutionary sequence for the "Level of Organization"?
4. Why is the "Closed" circulatory system considered more advanced than the "Open" type?
5. "Diploblastic" organization is a characteristic feature of which phylum?
6. Identify the organism: "Notochord is present only in the tail of the larva and disappears in the adult."
7. Which phylum contains the "First" animals to exhibit a Triploblastic organization but "No" coelom?
8. The "Enterocoelom" arises from the outpocketing of the embryonic gut. This is found in:
9. Which of the following defines "Pseudocoelom" in Nematodes?
10. Fishes like "Rohu and Catla" differ from "Sharks" because they have:
11. Why is the notochord replaced by a vertebral column in adult vertebrates?
12. Identify the Class: "Cold-blooded, 3-chambered heart, lays eggs in water, and respires through lungs or skin as adults."
13. Which of the following is an "exclusive" feature of Phylum Arthropoda?
14. In Phylum Mollusca, the coelomic cavity is reduced and is known as:
15. Why are Birds and Mammals classified as "Warm-blooded" (Homeothermic)?
16. The "Cytosine arabinoside" anti-cancer drug was extracted from which specific sea sponge?
17. Which phylum is commonly referred to as "soft-bodied animals" and represents the second largest animal phylum?
18. Metameric segmentation is most prominently visible in which of these organisms?
19. "Enterocoelomates" include animals where the coelom is formed from outpocketings of the primitive gut. This group includes:
20. Which feature is unique to Mammals and not found in any other vertebrate class?