摘要
The stems are a very important part of plants.You will remember that the roots and root hairs take in water and minerals from soil.The water moves up through tubes in the stem of the plant and food moves down.Look at this drawing of a stem.
The stems are a very important part of plants. You will remember that the roots and root hairs take in water and minerals from soil. The water moves up through tubes in the stem of the plant and food moves down. Look at this drawing of a stem,
