Focus On Earth Science: California Grade 6

Lesson 2: Organisms and Ecosystems

Standards Check

1.
Why are areas near the equator warmer than other areas of the Earth? 5.a, 5.e
A)There are fewer trees near the equator.
B)The equator is closer to the Sun.
C)Warm air flows away from the poles to the equator.
D)The areas near the equator receive direct sunlight.
2.
The place an organism lives is called its _________. 5.d
A)niche
B)habitat
C)role
D)camouflage
3.
In which of these biomes are fires and droughts common in California? 5.c
A)taiga
B)desert
C)grassland
D)temperate deciduous forest
4.
Which is the largest biome on Earth? 5.c
A)taiga
B)grassland
C)rain forests
D)tundra
5.
Which describes a rain forest ecosystem? 5, 5.c
A)The plant life provides food and shelter to a wide variety of insects, birds, and animals.
B)The variety of life is limited by the amount of available water.
C)The ecosystem is always located along the coast.
D)The ecosystem receives very little sunlight in winter.
6.
Why is there a greater variety of organisms in a rain forest than in a desert? 5.e
A)Rain forests are older ecosystems, so they have more organisms.
B)Animals like warmer temperatures.
C)Organisms do not like sand.
D)There are more plants for organisms to use as food.
7.
Which tells farmers and gardeners what kinds of plants can grow in their part of the country? 5.e
A)precipitation
B)humidity
C)climate zones
D)temperature
Grade 6
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