Chapter 4: Organ and Organ Systems in Animals - Online Test

Q1. The body cells in cockroach discharge their nitrogenous waste in the haemolymph mainly in the form of
Answer : Option C
Explaination / Solution:
No Explaination.


Q2. Frog's heart when taken out of the body continues to beat for sometime. Select the best option from the following statements.

(1) Frog is a poikilotherm.

(2) Frog does not have any coronary circulation.

(3) Heart is "myogenic" in nature.

(4) Heart is autoexcitable Options:

 

Answer : Option C
Explaination / Solution:
No Explaination.


Q3. Excretory organs of earthworms are
Answer : Option B
Explaination / Solution:
No Explaination.


Q4. Which of the following pores of earthworm is single?
Answer : Option B
Explaination / Solution:
No Explaination.


Q5. Respiration in Earthworm (I) is aerobic (II) occurs through body surface (III) occurs through tracheal system (IV) through gills
Answer : Option B
Explaination / Solution:
No Explaination.


Q6. In earthworms, setae is absent in the
Answer : Option D
Explaination / Solution:
No Explaination.


Q7. In earthworm, cocoon is formed by
Answer : Option D
Explaination / Solution:
No Explaination.


Q8. Number of spiracle pairs in Periplaneta americana is?
Answer : Option C
Explaination / Solution:
No Explaination.


Q9. Cockroach blood does not contain respiratory pigment. How does its cells receive oxygen?
Answer : Option D
Explaination / Solution:
No Explaination.


Q10. Antennae of cockroach have
Answer : Option A
Explaination / Solution:
No Explaination.