State whether the following statements are true or false: (j) Metamorphosis in insects (like silk moth) is brought about by thyroxine hormone.

False

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True

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Solution

The correct option is A False
False

The change from larva to adult insects during metamorphosis is brought about by insect hormones (which are made in their endocrine glands).

Thyroxine hormone is required for all amphibians to undergo metamorphosis and change from larvae to adults.

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Similar questions

State whether the following statements are true or false :

(a) The estrogen hormone develops deeper voice in males at puberty.

(b) Menstruation stops in men permanently around the age of 45 to 50 years.

(d) The sex chromosomes in all the gametes (sperms) of a man are not identical.

(e) Half the female gametes contain X chromosomes and the other half contain Y chromosomes.

(f) It is the sperm which determines the sex of a child.

(g) Each normal cell in our body contains 23 chromosomes.

(h) A girl should not be allowed to work in the kitchen during menstruation.

(i) A woman (mother) is responsible for the sex of her child.

(j) Metamorphosis in insects (like silk moth) is brought about by thyroxine hormone.

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