1.Roots2.Stems3.Leaves

1. Buttress roots support tall and thick tress.

where: tropical rainforest

2. Shallow roots absorb surface water quickly.

3. Deep roots absorb underground water in the soil.

where: tropical desert

4. Aerial roots grow from branches for oxygen in the air.

where: mangrove

5. The root of lotus is thick with holes for breathing.

where: pond

1. The stem of cactus is thick with tissues to store water.

where: tropical rainforest

2. Climbers’ stems grow around the trees as the tress push upward.

The stems help the climbers to obtain more sunlight and moisture.

where: tropical rainforest

1. The broad leaves help the plant to obtain more sunlight.

2. The smooth surface sheds excessive rainwater.

where: tropical rainforest

3. The spine-shaped leaves help the cactus to reduce moisture loss.

where: tropical desert

4. Hairy leaves help the plants to keep warm.

where: mountain

5. During the day, the leaves spread to get the sunlight.

Night timeNight time

Day timeDay time

At night, they fold up to reduce moisture loss.

6. Water in plants evaporates mostly from their leaves.

In the dry and windy winter, evaporation is fast. Having fewer leaves helps to reduce moisture loss.