Question

which statement is true?
plant cells are unaffected when water is scarce.
all organisms obtain water through food.
water is important to some organisms.
some substances must be dissolved in water before they can be used.

Explanation:

• Plant cells wilt and function poorly when water is scarce, so the first statement is false.
• Many organisms obtain water directly by drinking it, not only through food, so the second statement is false.
• Water is essential for all living organisms, not just some, so the third statement is false.
• Biological processes like nutrient uptake rely on substances being dissolved in water to be transported and used by cells, so the fourth statement is true.

Answer:

D. Some substances must be dissolved in water before they can be used.