Life Science Fall 2015 Final Pt. 2 Of 3: Question Preview (ID: 28497)

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Why are omnivores classified as secondary consumers?
a) Why are omnivores classified as secondary consumers?
b) because their only source of energy is other consumers
c) because they eat plants and animals
d) because they obtain energy directly from producers

If the primary consumers in a food chain become extinct, what will most likely happen?
a) The producer population will die out.
b) The secondary consumers will become tertiary consumers.
c) The secondary consumers will start eating decomposers.
d) The secondary consumers will also die out.

What will most likely happen if two species compete for the exact same resources in the same ecosystem at the same time?
a) Eventually one species will outcompete the other into extinction or emigration.
b) Eventually the resources will be depleted and both species will die out.
c) Eventually the ecosystem will adapt to provide enough resources for both species.
d) Eventually one species will hunt the other species until it becomes extinct.

A ___________ is characterized by the ecosystems that make it up.
a) desert
b) rain forest
c) tundra
d) biome

Why would you expect to see greater species diversity in marine organisms than in freshwater organisms?
a) Freshwater environments are typically larger than marine environments.
b) Freshwater ecosystems cover a very small percentage of Earth's surface.
c) Marine environments are warmer than freshwater environments.
d) Marine environments cover a very small percentage of Earth's surface.

How does an ecosystem differ from a biome?
a) An ecosystem is larger than a biome.
b) A biome only includes biotic factors.
c) A biome can be made up of several ecosystems.
d) There is no difference between a biome and an ecosystem.

Why is the tundra dominated by short shrubs and low lying plants?
a) The lack of sunlight prevents green plants from growing tall.
b) The cold temperatures force plants to remain close to the warmth of the ground.
c) The high winds blow over any trees above a certain height.
d) The frozen ground does not allow roots for large trees to grow.

Which of the following is a difference between tropical and temperate rain forests?
a) Tropical rain forests are only found at the equator. Temperate rain forests are found in coastal areas around the world.
b) Tropical rain forests receive hundreds of centimeters of rain. Temperate rain forests receive less than 100 centimeters.
c) Temperate rain forests are home to a diversity of mammals, while tropical rain forests only have birds, reptiles, and amphibi
d) Only tropical rain forests contain a great diversity of life forms.

A certain species of tree produces waxy, needle-like leaves and its seeds are protected within cones. Which biome is this tree most likely to be found in?
a) rain forest
b) cold desert
c) taiga
d) tundra

The tundra biome climate is best described as
a) extremely cold with heavy precipitation
b) extremely cold and windy
c) extremely cold with heavy precipitation
d) extremely cold and lifeless

Biomes are classified by all of the following EXCEPT
a) latitude
b) climate
c) plant species
d) longitude

Which biome averages the most amount of annual precipitation?
a) tropical rain forest
b) temperate rain forest
c) deciduous forest
d) grassland

Which type of animal is most likely to be found living in temperate grassland biomes?
a) small rodent-like animals
b) large grazing mammals
c) thick-furred predators
d) ectothermic reptiles

A population is made up of individual members of the same
a) species
b) community
c) ecosystem
d) habitat

A particular area contains snakes, lizards, hawks, and squirrels. Together these animals make up the the area's
a) population
b) community
c) ecosystem
d) habitat

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