Chapter Exam

Unit 3: Animal Diversity - I — Online MCQ Test

Q: Which phylum includes organisms with a porous body and canal system?

Answer: A. Porifera — Porifera are commonly called sponges and possess a body full of pores and a canal system for water circulation.

Q: In Earthworm, the clitellum is present in which body segments?

Answer: B. 14th to 16th segments — The clitellum in earthworm is a thick glandular band present from the 14th to 16th segments.

Q: Which of the following is NOT a characteristic of Porifera?

Answer: C. True tissues present — Poriferans do not have true tissues; they show a cellular level of organization.

Q: In earthworm, the main excretory organs are:

Answer: B. Nephridia — Earthworms possess nephridia for excretion and osmoregulation.

ZOOLOGY · CLASS 11 INTERMEDIATE 1 YEAR · Telangana State Board

Practice Unit 3: Animal Diversity - I with a free chapter-wise online MCQ test for Telangana State Board CLASS 11 INTERMEDIATE 1 YEAR ZOOLOGY. This chapter covers: This chapter covers non-chordate invertebrate phyla from Porifera to Hemichordata including general characteristics classification and type study of Earthworm.. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Unit 3: Animal Diversity - I — Important Questions & Answers (FAQ)

Frequently asked questions from Telangana State Board CLASS 11 INTERMEDIATE 1 YEAR ZOOLOGY — Unit 3: Animal Diversity - I, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which phylum includes organisms with a porous body and canal system?

A. Porifera ✓
B. Cnidaria
C. Platyhelminthes
D. Annelida

Answer: A. Porifera
Porifera are commonly called sponges and possess a body full of pores and a canal system for water circulation.

In Earthworm, the clitellum is present in which body segments?

A. 1st to 5th segments
B. 14th to 16th segments ✓
C. 20th to 22nd segments
D. 40th to 42nd segments

Answer: B. 14th to 16th segments
The clitellum in earthworm is a thick glandular band present from the 14th to 16th segments.

Which of the following is NOT a characteristic of Porifera?

A. Cellular level of organization
B. Canal system
C. True tissues present ✓
D. Sessile habit

Answer: C. True tissues present
Poriferans do not have true tissues; they show a cellular level of organization.

In earthworm, the main excretory organs are:

A. Malpighian tubules
B. Nephridia ✓
C. Green glands
D. Flame cells

Answer: B. Nephridia
Earthworms possess nephridia for excretion and osmoregulation.

Which statement is most appropriate for Hemichordata in the context of animal diversity?

A. They are true chordates because they possess a notochord
B. They are invertebrates with some chordate-like features but no true notochord ✓
C. They are arthropods with open circulatory system and jointed legs
D. They are molluscs with mantle and radula

Answer: B. They are invertebrates with some chordate-like features but no true notochord
Hemichordates are invertebrates and show chordate-like features, but they do not possess a true notochord.

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Unit 4: Animal Diversity - II