Question

III. Long Answer Questions,
1. Explain the life cycle of a frog.
2. How is the life cycle of a cockroach different from that of a hen?
3. How do mammals take care of their babies? Explain.​

Answer 1

1)The life cycle of a frog consists of three stages: egg, larva, and adult. As the frog grows, it moves through these stages in a process known as metamorphosis. Frogs are not the only animals to undergo metamorphosis; most other amphibians also undergo remarkable changes throughout their life cycles, as do many species of invertebrates. During metamorphosis, two hormones, prolactin and thyroxine, control the transformation from egg to larva to adult.

2)Life Cycle of a Cockroach-

All cockroaches develop by completing a life cycle consisting of three distinct stages: egg, nymph, and adult. The cockroach life cycle starts with the production of eggs. Adult females produce between 10 and 40 eggs at a time, which they carrying specialized cases called ootheca.

Life Cycle of a Hen-

Each chicken started its life by hatching from an egg. Chicks grow and change over time, becoming chickens and having babies of their own. The different stages of life that an animal passes through are called its life cycle. A chicken’s life cycle begins even before it hatches.

3)Because the babies rely on their mother's milk to live, the mammal mommies have to care for their young. ... Most of the mothers don't really try to teach their babies, but the babies watch their mother and do the things they see her do. Through copying their mothers, baby mammals learn everything they need to survive.

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