Question

Q.4 Define the following. 6
1. Luminous object
2. Stimuli
3. Reproduction

Answer 1

Answer:

1. Luminous objects are the objects that emit light.
2. Stimuli means responsiveness or reacting.
3. Reproduction is the process in which a living being produces individuals of its own kind.

Explanation:

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Answer 2

Answer:

1. Objects that can emit light energy by themselves are known as luminous objects.

2. a thing or event that evokes a specific functional reaction in an organ or tissue.

3. The process of producing offsprings (young ones) of their own kind is known as reproduction.