STAAR Review - Ecosystems - NICHOLAS GLAESER | Library

1

_____________ – an organism that eats other organisms (plants and or animals) for food

_______________ – an organism that gets energy by feeding on dead materials and waste

______________ – to rely on someone or something else

______________ – a unit consisting of living organisms and the environment that they live in

____________ – the place where an organism lives; habitats supply the organism with food, shelter, moisture, and temperature for survival

When beavers construct their dams, there are helpful effects and harmful effects to the habitat. Sort these effects as either helpful or harmful.

Aquatic species such as fish, turtles, and frogs will benefit from increased amounts of water.
Life downstream of the pond will suffer due to the decreased water flow in the stream caused by the dam.

Helpful Effects
Harmful Effects

5.12.B

5.9.C

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5.12.B

5.9.C

1

If humans over-hunted a population of insect-eating birds, what immediate change would happen?

Increased populations of insects

Migration of small mammals

Severe loss of vegetation

Increased seedling germination

5.12.B

5.9.C

1

If humans cleared a forest and built homes , which of the following would happen to the forest?

Increased insect populations

More frequent thunderstorms

More development of soil

Fewer tree-dwelling animals

5.12.C

5.9.C

1

A factory polluted the water supply in an area, what change can be observed in that ecosystem?

Local trees growing taller

New insects moving into the region

Fewer pond plants and animals

More birds nesting in trees

5.12.C

5.9.C

1

What is a negative result from bringing pigs to the Hawaiian rainforest ecosystem?

More plant vegetation for animals to eat

Fewer plants to hold soil in place

More kinds of insect species

Increased destruction by volcanoes

5.12.C

5.9.C

1

During the construction of a mall, a lake was filled in. This impacted organisms that - __________

5.12.C

5.9.C

1

Too many cows can be harmful to their ecosystem because they could - __________

5.12.C

5.9.C

1

How could beavers building a dam cause an increase in fish population? The dam -

blocks a river and creates a large lake

removes trees from around the river

forces many birds to leave the ecosystem

causes predators to hunt more fish

5.12.C

5.9.C

1

How might removing the alligators from a swamp habitat create a decrease in vegetation?

More plant-eating animals would survive.

Meat-eating animals would begin eating plants.

The plants in the swamp would get more sunlight.

Plants would not be able to spread their seeds.

5.12.C

5.9.C

1

A highway is built through a forest. How will this affect the organisms in the area?

Eliminate all species of plants found in the forest

Increase the number of bird species in the forest

Make it difficult for animals to move through the forest

Raise the birth rate of animals on the forest floor

5.12.C

5.9.C

1

Scientists found that raccoon populations increased where houses were built. Why is this?

Raccoons lost their natural source of water

Raccoons found more food living near people

The people brought many predators to the habitat

Building houses destroyed the raccoons’ habitat

5.12.C

5.9.C

1

Sort the items on the left to the matching definition on the right.

Extinction
Invasive
Community
Environment

A nonnative animal that moves into a new place

5.12.A

5.9.C

1

Sort the items on the left to the matching definition on the right.

Consumer
Omnivore
Producer

An animal that eats both plants and animals
A plant that makes its own energy
Animals that do NOT make their own energy

5.12.B

5.9.C

1

Select all three of the following effects of deforestation in the Amazon Rain Forest.

More rainfall will occur.

Less oxygen will be produced.

Soil will be eroded.

Bird and animal populations will decrease.

5.12.C

5.9.C

1

Select all three effects of overgrazing.

Wind and water erode the soil.

Animals consume producers faster than they can reproduce.

The ecosystem stays healthy and balanced.

Fertile land can turn into desert.

5.12.A

5.9.C

1

Each of the following can result in reduction or contamination of aquifers except -

Pollution in water run-off.

Pumping of water for irrigating crop fields.

Swimming, fishing, and snorkeling.

Lower average precipitation across 5 years.

5.9.C

1

Overpopulation occurs when there are more organisms than environments can sustain. This -

causes severe traffic jams to watering holes

destroys the country of Canada.

causes a disruption to the food chain.

impacts evaporation, condensation, and precipitation.

5.12.A

5.9.C

1

Human interaction such as building roads, homes, and fences causes which of the following?

Select ALL that are true.

allow animals to thrive since humans will care for them.

severely change/disrupt food webs.

create new habitats for the plants and animals there.

5.12.C

5.9.C

1

If all producers (plants) are removed from an environment what will be a logical result?

Animal populations will stay the same.

Animal populations will increase.

Animal populations will decrease.

Animal populations will thrive.

5.12.B

5.9.C

1

What is the effect of a new, stronger plant to an environment?

The native, slower growing plants will increase.

The native, slower growing plants will stay the same.

The native, slower growing plants will decrease.

The native, slower growing plants will migrate away.

5.12.B

5.9.C

1

What happens when a new consumer is introduced into an environment?

Producer populations will decrease due to overgrazing

The new consumer competes for food with the old consumers.

More producers start growing to keep up with demand.

The new consumer eats something that old consumers don't.

5.12.B

5.9.C

1

What happens as humans destroy animals' environments?

Animals build space ships and move to Mars.

Animals populations decrease.

Animal population stay the same.

Animal populations increase.

5.12.C

5.9.C

1

Select all THREE of the following ways that humans negatively impact the environment.

Pollution, deforestation, and overgrazing.

Planting  new trees and protecting land in natural parks.

Building roads, houses, and buildings.

Destroying the natural habitats of plants and animals.

5.12.C

5.9.C

1

Woodpeckers are native to Texas. Select all THREE of the negative impacts for Woodpeckers.

Losing their forest habitat to deforestation

An increase in tree-based insects.

Competition with other woodpeckers due to fewer food sources

Losing food sources due to deforestation

5.12.B

5.9.C

1

When human interaction in an environment occurs all of the following are options except

Organisms can adapt.

Organisms can perish.

Organisms can keep doing the same thing.

Organisms can migrate.

5.12.C

5.9.C

1

What happens when you remove prey from a grassland ecosystem?

The population of predators will stay the same.

The population of predators will decrease.

The population of predators will adapt, migrate, or perish.

The population of predators will increase.

5.12.B

5.9.C

1

Select the correct definition for each word.

	The number will go down.	The number will go up.
Decrease
Increase

5.9.C

1

Humans are part of the ecosystem and therefore impact it. Which of the following events in an ecosystem may produce a negative effect?

A lumber company clearing a forest

Restoring a natural habitat

Wildlife rangers minimizing disturbances

Preventing deer from depleting food resources

5.12.C

5.9.C

1

Which of the following is a way humans can positively impact ecosystems?

Waste dumping

Industrial pollution

Using biodegradable products

Overhunting animals

5.12.C

5.9.C

STAAR Review - Ecosystems

STAAR Review - Ecosystems

When beavers construct their dams, there are helpful effects and harmful effects to the habitat. Sort these effects as either helpful or harmful.

If humans over-hunted a population of insect-eating birds, what immediate change would happen?

If humans cleared a forest and built homes , which of the following would happen to the forest?

A factory polluted the water supply in an area, what change can be observed in that ecosystem?

What is a negative result from bringing pigs to the Hawaiian rainforest ecosystem?

How could beavers building a dam cause an increase in fish population? The dam -

How might removing the alligators from a swamp habitat create a decrease in vegetation?

A highway is built through a forest. How will this affect the organisms in the area?

Scientists found that raccoon populations increased where houses were built. Why is this?

Sort the items on the left to the matching definition on the right.

Sort the items on the left to the matching definition on the right.

Select all three of the following effects of deforestation in the Amazon Rain Forest.

Select all three effects of overgrazing.

Each of the following can result in reduction or contamination of aquifers except -

Overpopulation occurs when there are more organisms than environments can sustain. This -

Human interaction such as building roads, homes, and fences causes which of the following?Select ALL that are true.

If all producers (plants) are removed from an environment what will be a logical result?

What is the effect of a new, stronger plant to an environment?

What happens when a new consumer is introduced into an environment?

What happens as humans destroy animals' environments?

Select all THREE of the following ways that humans negatively impact the environment.

Woodpeckers are native to Texas. Select all THREE of the negative impacts for Woodpeckers.

When human interaction in an environment occurs all of the following are options except

What happens when you remove prey from a grassland ecosystem?

Select the correct definition for each word.

Humans are part of the ecosystem and therefore impact it. Which of the following events in an ecosystem may produce a negative effect?

Which of the following is a way humans can positively impact ecosystems?

Select the three things that environments provide to animals and plants.

When beavers construct their dams, there are helpful effects and harmful effects to the habitat. Sort these effects as either helpful or harmful.

Think of a prairie habitat with buffalo, deer, wolves, rabbits, and lots of grasses. What might happen in the ecosystem if the wolves were trapped and removed? Select all that are true.

If humans over-hunted a population of insect-eating birds, what immediate change would happen?

If humans cleared a forest and built homes , which of the following would happen to the forest?

A factory polluted the water supply in an area, what change can be observed in that ecosystem?

What is a negative result from bringing pigs to the Hawaiian rainforest ecosystem?

How could beavers building a dam cause an increase in fish population? The dam -

How might removing the alligators from a swamp habitat create a decrease in vegetation?

A highway is built through a forest. How will this affect the organisms in the area?

Scientists found that raccoon populations increased where houses were built. Why is this?

Sort the items on the left to the matching definition on the right.

Sort the items on the left to the matching definition on the right.

Select all three of the following effects of deforestation in the Amazon Rain Forest.

Select all three effects of overgrazing.

Each of the following can result in reduction or contamination of aquifers except -

Overpopulation occurs when there are more organisms than environments can sustain. This -

Human interaction such as building roads, homes, and fences causes which of the following?Select ALL that are true.

If all producers (plants) are removed from an environment what will be a logical result?

What is the effect of a new, stronger plant to an environment?

What happens when a new consumer is introduced into an environment?

What happens as humans destroy animals' environments?

Select all THREE of the following ways that humans negatively impact the environment.

Woodpeckers are native to Texas. Select all THREE of the negative impacts for Woodpeckers.

When human interaction in an environment occurs all of the following are options except

What happens when you remove prey from a grassland ecosystem?

Select the correct definition for each word.

Humans are part of the ecosystem and therefore impact it. Which of the following events in an ecosystem may produce a negative effect?

Which of the following is a way humans can positively impact ecosystems?

Human interaction such as building roads, homes, and fences causes which of the following?

Select ALL that are true.

Human interaction such as building roads, homes, and fences causes which of the following?

Select ALL that are true.