Viviparous and Oviparous Animals

Q.

Explain the process of reproduction in hens.

Q.

Differentiate between oviparous and viviparous animals. Give examples of oviparous animals.

Q.

In external fertilization, where does the development of embryo takes place?

1. inside the female body

2. outside the female body

3. no embryo formation

4. inside the male body

Q.

Internal fertilisation does not occur in

1. Humans

2. Fish

3. Tiger

4. Cow

Q. How are frogs born?

1. Frogs are born live, like humans.
2. Frogs are born in hard eggs, like birds.
3. Frogs are born from wet, soft eggs laid in the water.
4. Frogs are born by an adult frog splitting in half to make two adult frogs.

Q. Why do fish and frog lay more number of eggs whereas cow and human beings usually give birth to only one at a time?

Q. What are oviparous and viviparous animals?

Q.

What is external fertilization? The following diagram shows life cycle of a frog. Identify A, B , C and D in the diagram. [3 MARKS]

Q. External fertilisation occurs in which kind of environment?

1. Aquatic
2. Desert
3. Grassland
4. Mountain

Q.

In markets, eggs of birds are available but never eggs of dogs. Why?

Q. Animals which give birth to the young ones are called _______.

1. oviparous
2. viviparous
3. None of these
4. ovi-viviparous

Q. What is the difference between the INTERNAL FERTILIZATION and the EXTERNAL FERTILIZATION ?

Q. Question 24
How can we say that fish exhibits external fertilization?

Q. (a) What are viviparous animals $?$ Give two examples of viviparous animals.

Q. The development of embryo inside an egg is called as:

1. vivipary
2. carnivorous
3. omnivorous
4. ovipary

Q. The animal that reproduces by laying eggs is:

1. cat
2. dog
3. cow
4. fish

Q. Why do fish and frogs lay eggs and release sperm in hundreds whereas a hen lays only one egg at a time?

1. One sperm can fertilise many eggs
2. Only one of the fertilised egg can become an adult
3. To ensure fertilisation of at least few of them
4. Many sperms can fertilise one egg

Q. Gametes are of same size and shape in all organisms.

1. True
2. False

Q. Differentiate oviparous and viviparous organisms. Also, give examples.

Q. Birds and snakes are oviparous animals.

1. True
2. False

Q. The information given below is about the kind of reproduction in an animal.
A. The female lays hundreds of uncovered eggs in water.
B. The male deposits sperms over them.
C. The eggs are fertilised externally.
Identify the animal.

1. Ostrich
2. Hen
3. Frog
4. Snake

Q. Birds are considered oviparous because _______.

1. They are able to fly
2. Forelimbs are modified into wings
3. They lay eggs
4. None of the above

Q. Do external fertilisation happen externally explain?

Q. Viviparity is observed in:

1. Frog
2. Lizard
3. Snake
4. Rabbit

Q.

State whether the following statements are true or false:​
(g) Oviparous animals give birth to young ones.​

1. True
2. False

Q. How many daughter amoeba are produced during two successive binary fission?

1. Two
2. Four
3. Six
4. Eight

Q. Why do fish and frog produce a huge number of eggs each year?

Q.

Question 20
State whether the following statements are True or False. If false, correct the statement:
(a) External fertilisation can occur both in water and on land.
(b) The eggs of fish are covered by hard shells for protection.
(c) Human egg has a head, middle piece and tail.
(d) In adult human females, a single mature egg is released into an oviduct every month.

Q. Which one is not an oviparous animal?

1. Human
2. Crow
3. Hen
4. Crocodile

Q. Kangaroo is a viviparous animal.

1. True
2. False