Metamorphosis

Q.

Explain the process of fertilization in frogs.

Q. What are hermaphrodite animals? Give examples.

Q.

Give the names of bisexual animals.

Q. Animals that carry both male and female reproductive organs are known as___

Q.

Which of the following is not a characteristic that all living things share?

1. Respiration

2. All of the above

3. Growth

4. Reproduction

Q.

Outermost whorl of a flower is

1. Androecium

2. Corolla

3. Calyx

4. Gynoecium

Q. Which of the following is an example of bisexual animal?

1. Earthworm
2. Hydra
3. Paramoecium
4. Cat

Q.

Why do fish and frogs lay eggs in hundreds whereas a hen lays only one egg at a time? [3 MARKS]

Q. Which of the following organisms have the largest egg?

1. frog
2. ostrich
3. human
4. hen

Q.

What is axolotl?

Q.

Question 03(ii)
A tadpole develops into an adult frog by the process of ________ .

Q.

Explain the structure of Hippocampus.

Q.

Wax glands of honeybees are present in:

1. Queen

2. Drones

3. Workers

4. Both A and C

Q.

Which of the following is bisexual?

1. earthworm

2. frog

3. fish

4. tortoise

Q. Match the following processes with the correct examples.

$\begin{array}{cc}\text{a. Budding}& \text{i. Amoeba}\\ \text{b. Binary Fission}& \text{ii. Hydra}\\ \text{c. External fertilisation}& \text{iii. Human beings}\\ \text{d. Internal fertilisation}& \text{iv. Frog}\end{array}$

1. a-ii, b-iii, c-iv, d-i
2. a-ii, b-iv, c-i, d-iii
3. a-ii, b-i, c-iv, d-iii
4. a-ii, b-i, c-iii, d-iv

Q. What are hermaphrodite animals? Give examples.

Q. Explain the process of metamorphosis in housefly

Q. Arrange the stages of frog life cycle in the correct order.

1. Egg
2. Early tadpole
3. Late tadpole
4. Adult frog

Q.

The animal A which is classified as an amphibian lays eggs in pond water. The hatching of its eggs produces a tailed-form B which looks very different from the animal A. The form B then undergoes a change C and gets converted into animal A.

(a) Name (i) animal A, and (ii) form B.

(b) What is the change C knows as ?

(c) Name the breathing organs of A.

(d) What are the breathing organs of B ?

Q.

Which type of fertilization is found in frogs?

1. External, in water

2. Internal, in abdomen

3. External, in uterus

4. Internal, in epididymis

Q.

Question 22
Name the hormone which would be released during the following situations:

(a) A frightened person
(b) Growth of a child to adult.
(c) Development of caterpillar to moth.
(d) Development of tadpole to frog.

Q.

Hormone produced by hypothalamus is __________

1. Prolactin

2. Insulin

3. Oxytocin

4. Thyroxine

Q.

Insufficient production of __________ in the tadpoles leads to their incomplete development.

Q.

Which of the following animal does not show metamorphosis ?

(a) fish

(b) frog

(c) silk moth

(d) mosquito

Q.

Select the option that shows the correct sequence in the life history of a butterfly

1. Egg → Larva → Adult → Pupa

2. Egg → Pupa → Adult → Larva

3. Egg → Pupa → Larva → Adult

4. Egg → Larva → Pupa → Adult

Q. Metamorphosis is observed in which of the following organism?

1. Earthworm
2. Frog
3. Hydra
4. Yeast

Q. Which of the following is an example of hermaphrodite?

1. 
2. 
3. 
4. 

Q. Which of the following animal (s) exhibit(s) metamorphosis?

1. 
2. 
3. 
4. 

Q.

The self-supporting young organism that do not resemble the adult is called

1. Pupa

2. Cocoon

3. Nymph

4. Larva

Q.

Fill in the following blanks with suitable words:​

(m) Metamorphosis in amphibians is brought about by hormone.​