A frog has its brain crushed. But when pinched on the leg. The leg draws away. It is an example of
1. neurotransmitter induced response
2. simple reflex
3. conditioned reflex
4. automated motor response
An animal which contains three-chambered heart is ______________.
1. man
2. rabbit
3. fish
4. frog
Ventricle of frog contains:
(1) oxygenated blood
(2) deoxygenated blood
(3) no blood
(4) mixed blood
Assertion (A): Hibernation during winter and aestivation during summer is seen in frogs.
Reason (R): Frogs are poikilotherms.
(1) Both A and R are true and R is the correct explanation for A.
(2) Both A and R are true both R is not the correct explanation for A.
(3) A is true and R is false.
(4) A is false and R is true.
Male cockroach and female cockroach can be differentiated by :
1. Ocelli
2. Anal cerci
3. Anal styles
4. Antennae
The cockroach of genus Blatta also called
1. German cockroach
2. Australian cockroach
3. Oriental cockroach
4. American cockroach
The peculiar pungent smell of cockroach is
produced by the secretions of :
1. Pheromones
2. Flame cells
3. Abdominal glands
4. Cervical glands
Which of the following animal is correctly matched to their corresponding respiratory organ ?
1. Earthworm - Open circulatory system with
haemoglobin
2. Cockroach - Three pairs of spiracles in each
thorax
3. Frog in water - Skin and lungs
4. Frog on land - Skin, buccal cavity, lungs
In the given diagram of areolar tissue, identify a phagocytic cell:
1. | A | 2. | B |
3. | C | 4. | D |
Match column-I and column-II, choose the correct combination from the option given
|
Column-I |
|
Column-II |
(A) |
Adhering Junctions |
1. |
Help to stop substances from leaking across a tissue |
(B) |
Gap junctions |
2. |
Perform cementing to keep neighbouring cells together |
(C) |
Tight junctions |
3. |
Facilitate the cells to communicate with each other |
1. (A)-3, (B)-2, (C)-1
2. (A)-2, (B)-3, (C)-1
3. (A)-2, (B)-1,(C)-3
4. (A)-1, (B)-3, (C)-2