Q. No.The mucosa of the bladder is comprised of _____.
1. smooth muscle
2. squamous epithelium
3. transitional epithelium
4. simple columnar epithelium
1. smooth muscle
2. squamous epithelium
3. transitional epithelium
4. simple columnar epithelium
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 |
.
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
One very special feature in earthworm (Pheretima) is that –
| 1. | Fertilisation for eggs occurs inside the body |
| 2. | The typhlosole greatly increases the effective absorption area of the digested food in the intestine |
| 3. | The S- shaped setae embedded in the integument are the defensive weapons used against the enemies |
| 4. | It has a long dorsal tubular heart |
Frogs differ from humans in possessing
1. paired cerebral hemispheres
2. hepatic portal system
3. nucleated red blood cells
4. thyroid as well as parathyroid
If we cut the vagus nerve supplying the heart of frog.
the heart rate will
| 1. | Increase. | 2. | Decrease. |
| 3. | No effect on heart rate. | 4. | First decrease then normalised. |
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 |
Contraction of sternohyal muscles during breathing in frog
| 1. | Opens glottis |
| 2. | Closes glottis |
| 3. | Lowers floor of oral cavity |
| 4. | Raises floor of oral cavity |
© 2026 GoodEd Technologies Pvt. Ltd.