Question
Explain with a diagram the development of an embryo.
✓
Answer
An embryo is developed in the process of fertilisation. Fertilisation results in the formation of zygote which begins to develop into an embryo .
The zygote divides repeatedly to give rise to a ball of cell which further begin to form groups that develop into different tissues and organs of the body. This developing structure is called an embryo. The embryo gets embedded in the wall of the uterus for further development. The embryo continues to develop in the uterus. It gradually develops different body parts. This developing stage of embryo is called foetu
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→Heera: Brother Beera, your maize crops looks beautiful! They have grown pretty fast.
Beera: Yes, I have sprayed urea this time. What about you?
Heera: Well, I am still relying on good old cow dung. I am saving money for buying a tractor.
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Heera: Yes, it’s been very labour intensive for me and now these weeds have come up.
Beera: Try weedicides, they are very effective. Now answer the following questions.
$i.$ List the practices which are not environment friendly and why?
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$(g)$
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