AP BIOLOGY

Detailed explanation-1: -Most liverworts must be near water to survive, and are very rare in the park. Mosses and liverworts are small, primitive, non-vascular plants. They lack the conductive tissue most plants use to transport water and nutrients. Instead, moisture is absorbed directly into cells by osmosis.

Detailed explanation-2: -Nonvascular plants lack vascular tissue. Vascular tissue provides some type of support and structure to vascular plants. Nonvascular plants absorb water and nutrients from the ground so they remain close to the ground to access water.

Detailed explanation-3: -Nonvascular plants are plants that do not have any special internal pipelines or channels to carry water and nutrients. Instead, nonvascular plants absorb water and minerals directly through their leaflike scales. Nonvascular plants are usually found growing close to the ground in damp, moist places.

Detailed explanation-4: -Vascular plants evolved stems made of vascular tissues and lignin. Because of lignin, stems are stiff, so plants can grow high above the ground where they can get more light and air.