Ecology Study Guide

Use the following diagram of a food web to answer questions 1-7

Which of the following is NOT directly a limiting factor of the frog populaltion?

• increase in pesticide use harms frogs

• the amount of crickets available to eat

• increase in the hawk population

• space available for egg-laying spots

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the role of the mountain lions in this ecosystem?

• herbivore

• omnivore

• producer

• carnivore

What group of organisms are missing from this food web?

• producers

• decomposers

• carnivores

• herbivores

Tags

NGSS.MS-LS2-2

Hunting has just started to be allowed in the ecosystem above, and humans are killing many of the deer. A reduction in the deer population will affect the amount of energy this ecosystem is able to provide for which of the following organisms?

• rabbit

• mountain lion

• mouse

• hawk

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following could possibly INCREASE the total amount of energy the sparrow population receives within the food chain?

• an increase in the # of crickets

• an increase in the # of rabbits

• a decrease in trees and grasses

• a decrease in the # of hawks

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

If additional sparrows were introduced into this ecosystem, there would MOST likely be an immediate decrease in the ....?

• cricket population

• hawk population

• frog population

• spider population

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which organisms in the food web are competing for the same resource?

• rabbit, cricket, & spiders

• mountain lions, snakes, & hawks

• spiders, sparrows, & frogs

• hawks & sparrows

Tags

NGSS.MS-LS2-1

Use the following diagram of an ocean food web to answer questions 8-10

Which organism labeled in this food web provides energy, either directly or indirectly, to all other organisms?

• elephant seals

• small animals

• small plants

• cod

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

What do the arrows in the diagram represent?

• flow of energy

• life cycle stages

• one community replacing another

• renewable resource depletion

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which of the following correctly shows one path that energy would flow through this ecosystem?

• killer whales, penguins, krill, small plants

• small plants, cod, krill, small animals

• small animals, small plants, krill, penguins

• small plants, krill, squid, elephant seal

Tags

NGSS.MS-LS2-3