Question

multiple - choice question

1. why doesnt kelp need strong roots or bark?

d. the ocean dissolves the bark.
a. the ocean supports its weight.
c. the roots would just get it in the way.
b. the seals eat the stalks and help it survive.

Explanation:

Kelp is an aquatic plant. In water, the buoyancy of the ocean helps support its weight. Strong roots (for anchoring in soil - like in land plants) and bark (for protection and support in terrestrial environments) are not necessary as the ocean environment provides support. Option A is correct as it relates to the ocean's support. Option D is incorrect as there's no indication the ocean dissolves bark. Option C is wrong as roots have a purpose (anchoring) in their natural habitat (ocean floor - though kelp's holdfasts are not like strong roots of land plants but still have a function). Option B is not relevant to why no strong roots or bark are needed.

Answer:

A. The ocean supports its weight.