HSC Science इयत्ता ११ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Zoology

A living organism is differentiated from a nonliving structure based on ______.

Who coined the term biodiversity?

Why elephants and other wild animals are entering into human living area?

What is the difference between a Zoo and wild life sanctuary?

The symmetry exhibited in cnidarians is ______.

Which of the following animals has a true coelom?

In Pheretima locomotion occurs with the help of ______.

Which of the following have the highest number of species in nature? 

Which of the following is a crustacean?

Lateral line sense organs occur in ______.

Match the following columns and select the correct option.

Compare Schizocoelom with enterocoelom.

Identify the structure that the archenteron becomes in a developing animal.

Observe the animal below and answer the following questions.

1. Identify the animal.
2. What type of symmetry does this animal exhibit?
3. Is this animal Cephalized?
4. How many germ layers does this animal have?
5. How many openings does this animal’s digestive system have?
6. Does this animal have neurons?

Choose the term that does not belong in the following group and explain why it does not belong?

Notochord, cephalisation, dorsal nerve cord and radial symmetry.

What are flame cells?

The clitellum is a distinct part in the body of earthworm Lampito mauritii, it is found in?

Sexually, earthworms are ______.

To sustain themselves, earthworms must guide their way through the soil using their powerful muscles. They gather nutrients by ingesting organic matter and soil, absorbing what they need into their bodies. State whether the statement is true or false: The two ends of the earthworm can equally ingest soil.

Choose the wrong statement among the following: