Question

3. Units of measurement in ancient times
4. Plants that respond to stimuli​

Answer 1

Answer:

Your Answer:-

Explanation:

(1) The Egyptian cubit, the Indus Valley units of length referred to above and the Mesopotamian cubit were used in the 3rd millennium BC and are the earliest known units used by ancient peoples to measure length.

(2) Tropisms are directional growth responses that occur in response to directional stimuli. Phototropism occurs when plants direct their growth towards or away from light. It i bl li ht d d t These Arabidopsis seedlings were germinated in the dark for about 3 days.

Answer 2

Answer:

3.. The Egyptian cubit, the Indus Valley units of length referred to above and the Mesopotamian cubit were used in the 3rd millennium BC and are the earliest known units used by ancient peoples to measure length.

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Units of length.

4 ..

Tropisms are directional growth responses that occur in response to directional stimuli. Phototropism occurs when plants direct their growth towards or away from light