3. During the day, transpiration and photosynthesis are related, give reasons?

during the day, when the mesophyll cells of leaves are carrying out photosynthesis and transpiration side by side, the excess water produced in photosynthesis is removed through the process of transpiration.

The relationship between photosynthesis and transpiration during day time is that the CO2 and H20 released by the cellular respiration gets utilised in photosynethis. It shows that the products of cellular respiration is the reactants of photosynthesis .

Explanation:

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during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

a symbiotic relationship with the mitochondria