Question

multiple select question
select all that apply
select statements about the effect of sunlight and water on a plants phenotype that are true.
□ many plants produce more leaves in response to water deficiency.
□ without enough sunlight, most flowering plants do not bear flowers.
□ without enough sunlight, many plants produce more flowers.
□ many plants lose their leaves in response to water deficiency.

Explanation:

• Water deficiency leads plants to conserve water; losing leaves reduces transpiration, so producing more leaves is not a response to drought.
• Sunlight is critical for photosynthesis to produce energy needed for flower development; most flowering plants cannot flower without sufficient sunlight.
• Insufficient sunlight limits energy production, so plants will not produce more flowers as that requires extra resources.
• To reduce water loss during water scarcity, many plants drop leaves, which lowers transpiration surface area.

Answer:

B. Without enough sunlight, most flowering plants do not bear flowers.
D. Many plants lose their leaves in response to water deficiency.