Ecology Test Review

What is the original source of energy for most ecosystems?

• grass

• humans

• the sun

• heat

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Identify the animal in this food web that obtains nutrients directly from producers.

• frogs

• caterpillars

• foxes

If the population of frogs decreased, then what would increase?

• foxes

• hawks

• caterpillars

• snakes

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What will happen if a drought causes the population of grass to decrease?

• The population of decomposers will decrease because there are less organisms dying.

• The population of owls will not be affected because they are predators who do not eat grass.

• The population of mice will decrease because there will be less food available due to the drought.

• The population of grasshoppers will increase because they will find a different, better food source.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Label each organism (with a blank) in the food web with it's "role".

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

Which statement best explains why decomposers are an important part of a food web?

• They use sunlight to make their own food.

• They give off oxygen for animals to breathe.

• They provide camouflage for small animals.

• They make nutrients available to plants.

Tags

NGSS.MS-LS2-3

Which organism(s) in the food chain are predators?

• maize

• locust

• lizard

• snake

How does energy move in the food web picture?

• from cod to phytoplankton

• from zooplankton to squid

• from elephant seal to squid

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Plants make their own food they are called

• producers

• consumers

Based on the information provided, why is the native paddlefish population declining?

• They occupy the same niche as the Asian carp.

• Native paddlefish compete for the same food as the Asian carp.

• The introduction of Asian carp caused a drop in water temperatures.

• Native paddlefish populations are declining as a result of increased human consumption.

• The introduction of Asian carp limited the locations where native paddlefish can hide from predators.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4