HSC Science कक्षा ११ - Tamil Nadu Board of Secondary Education Question Bank Solutions

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:

What characteristics are used to identify the earthworms?

What are earthworm casts?

How do earthworms breathe?

Differentiate between peristomium and prostomium in earthworm.

Give the location of clitellum and spermathecal openings in Lampito mauritii.

Air moving from the nose to the trachea passes through a number of structures. List in order of the structures.

Arrange the following structures in the order that a drop of water entering the nephron would encounter them.

1. Afferent arteriole 
2. Bowman’s capsule 
3. Collecting duct 
4. Distal tubule
5. Glomerulus
6. Loop of Henle
7. Proximal tubule 
8. Renal pelvis

Kidney stones are produced due to deposition of uric acid and ______.

The type of movement exhibits by the macrophages are ______.

Name the different types of movement.