In an average year in a tropical rain forest, the climate is very humid because of all the rainfall, which amounts to about 250 cm per year. 

The rain forest has lots of rain because it is very hot and wet. This climate is found near the equator.
In regions along the equator, vast areas of land are covered with lush, green plant growth that form the tropical rainforests

In the winter the Chaparral climate, also known as the Mediterranean climate, is mild and moist, but not rainy. During the summer it is very hot and dry. The temperature is usually mild but it can get very hot or nearly freezing. The temperature range is between 30° and 100° F.

 - Because chaparral defines California as a place. It is our native landscape. It provides essential protection against erosion, allows underground water supplies to recharge, moderates local climates, provides important habitat for an interesting assortment of animals, and offers unique opportunities

Ghost Plant
Pencil Plant
Burro’s Tail

Paddle Plant
Living Stone
Queen Victoria Agave
Zebra Cactus
Golden Barrel
Bunny Ear Cactus
Fox Tail Agave

Image result for desert ecosystem climate
During the day the temperature may reach 50°C, when at night it may fall to below 0°C. Deserts have less than 250 mm of rainfall per year. The rain can be unreliable. Most deserts are found between 20° and 35° north and south of the equator.

A desert is a barren area of landscape where little precipitation occurs and consequently living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to the processes of denudation. About one third of the land surface of the world is arid or semi-arid.

Beluga Whale
The Pacific Walrus

Bearberry.
Labrador Tea. ...
Diamond Leaf. ...
Arctic Moss. ...
Arctic Willow. ...
Caribou Moss. ...
Tufted Saxifrage. ...
Pasque Flower.

Tundras are among Earth's coldest, harshest biomes. Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy and rainfall is scant. Tundra lands are snow-covered for much of the year, until summer brings a burst of wildflowers.

Tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturia, meaning treeless plain

The climate of freshwater biome is determined by a number of factors including location, season and depth of water. On average, the temperature will decline as the water gets deeper.

A variety of freshwater fish also occupy this zone. Plankton have short life spans — when they die, they fall into the deep-water part of the lake/pond, the profundal zone. This zone is much colder and denser than the other two.