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BIOLOGY

JAMB 2004 - Question 47

Biology 2004 JAMB Past Questions - Question 47: Plants survive hot dry conditions by

Choose the most appropriate option for the gap .

Plants survive hot dry conditions by

A: storing water in large parenchyma cells

B: producing numerous leaves

C: having numerous stomata

D: having evergreen leaves

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Correct Answer

Explanation

A- Plants of hot dry conditions are desert plants e.g cactus and euphorbia. Theyhave large parenchymatous cells in their stems that store a lot of water andare covered by thick cuticle to withstand water loss. They have leaves whichare modified into spines to reduce rate of transpiration.Theproduction of numerous leaves, numerous stomata and evergreen leaves are'features of plants living in habitats with abundant water supply such astropical rain forest region