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Reproduction in Animals

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.

Reproduction in Animals

How is reproduction in hydra different from that in amoeba?

Reproduction in Animals

Mother gives birth to a baby but the baby has characters of both parents. How is this possible?

Reproduction in Animals

The term metamorphosis is not used while describing human development. Why?

Reproduction in Animals

Fill up the blanks with the terms given below:

body, asexual, binary, single, nucleus

Amoeba is a ___________ celled organism. It reproduces by ___________ reproduction. The process of reproduction begins by the division of its ___________ into two. This is followed by the division of its ___________ into two. This type of reproduction is called ___________ fission.

Reproduction in Animals

The eggs of frogs do not have shells for protection, yet they are safe in water. How?

Reproduction in Animals

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

Reproduction in Animals

What is the importance of reproduction?

Reproduction in Animals

Stages in the lifecycle of silkworm are given below. Write them in sequential order.

pupa, silkworm, egg, silkmoth

Reproduction in Animals

Although 2 cells called gametes fuse, the product formed is a single cell called zygote. Justify.