13. Reproduction in Animals worksheet - Free Printable

Let's solve the given biology questions step by step and explain each answer.

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Question 1: One of the following is the viviparous animal

- Options:
1) Frog
2) Sparrow
3) Leopard
4) Crow

Explanation:
- Viviparous animals are those that give birth to live young ones. Examples include mammals like humans, dogs, cats, and leopards.
- Oviparous animals lay eggs from which their offspring hatch. Examples include frogs, sparrows, and crows.

Answer:
3) Leopard

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Question 2: Epidermal hair is seen in this animal

- Options:
1) Frog
2) Snake
3) Crow
4) Cat

Explanation:
- Epidermal hair refers to hair on the skin, which is a characteristic feature of mammals.
- Frogs and snakes are amphibians and reptiles, respectively, and do not have epidermal hair.
- Crows are birds and also do not have epidermal hair.
- Cats are mammals and have epidermal hair.

Answer:
4) Cat

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Question 3: Asexual reproduction is seen in the following

- Options:
1) Hydra
2) Algae
3) Fungi
4) None

Explanation:
- Asexual reproduction is a type of reproduction where an organism produces offspring without the involvement of gametes (sperm and egg). This can occur through methods like budding, fragmentation, or spore formation.
- Hydra reproduces asexually through budding.
- Algae can reproduce both sexually and asexually.
- Fungi reproduce asexually through spore formation.
- Since all three options (Hydra, Algae, and Fungi) can undergo asexual reproduction, the correct answer is "None" if we are looking for a single specific example.

Answer:
1) Hydra (Note: All three can reproduce asexually, but Hydra is a classic example.)

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Question 4: Binary fission is seen in

- Options:
1) Earthworm
2) Amoeba
3) Hydra
4) Monkey

Explanation:
- Binary fission is a type of asexual reproduction where an organism divides into two equal parts.
- Amoeba is a single-celled organism that reproduces through binary fission.
- Earthworms, hydra, and monkeys are multicellular organisms and do not reproduce through binary fission.

Answer:
2) Amoeba

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Question 5: Female flower does not have this part

- Options:
1) Ovary
2) Style
3) Stigma
4) Stamen

Explanation:
- A female flower contains the following parts:
- Ovary: Produces ovules (eggs).
- Style: Connects the stigma to the ovary.
- Stigma: Receives pollen grains.
- The stamen is the male reproductive part of a flower, consisting of the filament and anther. It is not present in a female flower.

Answer:
4) Stamen

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Question 6: Male reproductive system consists of

- Options:
1) Fallopian tube
2) Testes
3) Uterus
4) Ovary

Explanation:
- The male reproductive system includes organs responsible for producing sperm and delivering it outside the body.
- Testes: Produce sperm and testosterone.
- Fallopian tubes, uterus, and ovaries are parts of the female reproductive system.

Answer:
2) Testes

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Question 7: Internal fertilization is observed in

- Options:
1) Fish
2) Frog
3) Human beings
4) Starfish

Explanation:
- Internal fertilization occurs when sperm and egg meet inside the female's body.
- Fish and frogs typically engage in external fertilization, where eggs are laid outside the body and fertilized externally.
- Starfish also reproduce through external fertilization.
- Human beings and other mammals undergo internal fertilization.

Answer:
3) Human beings

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Question 8: Method employed by a childless couple to have a baby

- Options:
1) In Vivo fertilization
2) In vitro fertilization

Explanation:
- In vivo fertilization refers to natural fertilization that occurs inside the body.
- In vitro fertilization (IVF) is a medical procedure where fertilization occurs outside the body in a laboratory setting. This method is commonly used by childless couples to conceive.

Answer:
2) In vitro fertilization

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Final Answers:

1. 3) Leopard
2. 4) Cat
3. 1) Hydra
4. 2) Amoeba
5. 4) Stamen
6. 2) Testes
7. 3) Human beings
8. 2) In vitro fertilization

Boxed Final Answer:
\[
\boxed{3, 4, 1, 2, 4, 2, 3, 2}
\]