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Our Environment
Question
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What happens after the sperms enter the human female body?

Answer

After the sperm enter the female body. They travel upwards from vagina and reach the oviduct where they may encounter the egg. The sperm may fuse with the egg and form a zygote . The zygote gets implanted in the lining of the uterus, and starts to divide. The uterus prepares itself every month to receive and nurture the growing child.

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Some More Questions From Our Environment Chapter

Why is variation beneficial to the species but not necessarily for the individual?

Name the methods of asexual reproduction.

Name two organisms which reproduce by (a) budding (6) fragmentation and (c) spore formation.

Why cannot all multicellular organisms divide cell-by-cell like Spirogyra?

How is the problem of dobling of the amount of DNA solved ?

Write names of five plants in which stem is used to produce a new plant.

Give one example of plant which uses leaves for propagation. Draw propagation organ.

List four methods of vegetative propagation which are exploited by man in propagating plants in garden and nurseries.

Write five names of plants which are usually propagated by cutting method.

Name a ornamental plant which is grown by the vegetaive propagation of stem.