Ecosystem Question Preview (ID: 41565)

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Which of these are a limiting factor in an ecosystem
a) water
b) temperature
c) food
d) all of the above

Seasons are different; trees lose leaves in cold; may have some coniferous trees
a) grassland
b) deciduous forest
c) tundra
d) taiga

Less than 2% of earth; not salty; can be standing or flowing
a) freshwater
b) marine
c) estuary
d) ocean

Largest biome; photic and aphotic zones; home of coral reefs
a) freshwater
b) tropical rainforest
c) tundra
d) marine

Snow in winter; rain in summer; evergreen trees; often in high altitudes
a) deciduous forest
b) tundra
c) temperate grassland
d) coniferious forest / taiga

Permafrost prevents roots of trees from growing; short growing season; only small plants
a) tundra
b) desert
c) tropical rainforest
d) taiga

Warm year round with some water, dominant plant is grass
a) tropical rainforest
b) deciduous forest
c) grassland
d) tundra

Seasons are different; summers are very hot; dry year around
a) deciduous forest
b) desert
c) tropical rain forest
d) tundra

The organisms below are all decomposers except
a) worms
b) moss
c) mushroom
d) shrimp

Temperatures are similar all year; very humid; great variety of organisms; hot and wet
a) tropical dry forest
b) deciduous forest
c) tropical rain forest
d) tundra

How much energy is transferred at each tropic level?
a) 5 percent
b) .10 percent
c) 10 percent
d) 100 percent

What are primary consumers?
a) organisms that eat plants
b) organisms that eat plants and animals
c) organisms that get energy from the sun
d) organisms that eat dead organisms

Which are examples of abiotic factors of an ecosystem?
a) rocks, trees, rivers, fish, soil
b) rocks, soil, lakes, sunlight, rain
c) soil, bacteria, sunlight, lakes, caves
d) rivers, streams, grass, mountains, sunlight

What is a food web?
a) a pack of the same kind of animal
b) a spider's home
c) a group of linked food chains
d) a group of like insects

Which of the following is correctly arranged from lowest to highest trophic level?
a) bacteria, eagle, frog, mushroom
b) grass, bass, minnow, snake
c) grass, mouse, snake, eagle
d) algae, deer, hawk, bacteria

What adaptations allows a polar bear to survive in its environment?
a) thick, white fur to keep it warm
b) big body to blend in
c) black eyes to see well
d) nose to smell

Why do bears hibernate
a) a lack of food in winter
b) to conserve energy
c) to stay warm
d) all possible answers

What is the ultimate source of energy in food chains
a) producers
b) consumers
c) plants
d) the sun

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