Fertilization in frogs is different from that in hens. Justify your answer withsuitable reasons.

Fertilization in frogs is different from that in hens. This is justified by several reasons:

1. External vs. Internal Fertilization: Frogs undergo external fertilization, where the male releases sperm onto the eggs after they are laid by the female. In contrast, hens undergo internal fertilization, where the male's sperm is deposited inside the female's body.

2. Water vs. Land Environment: Frogs lay their eggs in water, and the sperm needs to swim to reach the eggs for fertilization. Hens, on the other hand, lay their eggs on land, and the sperm is transferred directly to the eggs inside the female's body.

3. Egg Protection: Frog eggs are not protected by a hard shell, so they need to be laid in water to prevent them from drying out. Hens, however, have hard-shelled eggs that provide protection against desiccation and other external threats.

4. Reproductive Organs: Male frogs have paired testes that produce sperm, while female frogs have paired ovaries that produce eggs. In hens, the male has testes, and the female has a single ovary that produces eggs.

5. Fertilization Mechanism: In frogs, the sperm and eggs meet in the water, and external fertilization occurs. In hens, the sperm is transferred to the female's reproductive tract, where internal fertilization takes place.

Overall, the differences in fertilization between frogs and hens can be attributed to their distinct reproductive strategies, environments, and anatomical adaptations.