Animal Systems Interactions

An organism that gets its energy by feeding on producers in the food chain

• Primary consumer

• Producer

• Secondary Consumer

• Herbivore

An animal that eats primary consumers (i.e., other animals that eat plants)

• Herbivore

• Primary Consumer

• Producer

• Secondary Consumer

An organism that gets its energy by eating secondary consumers

• Consumer

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

Tags

NGSS.MS-LS2-3

The position an organism occupies on the food web

• Level up

• levels

• trophic levels

• Top of the pyramid

Tags

NGSS.MS-LS2-3

An organism that consumes only plants

• Vegetarian

• Omnivore

• Carnivore

• Herbivore

Tags

NGSS.MS-LS2-1

In this food web, what would happen if the zebra population declined due to a disease?

• The grass population would decrease.

• The giraffe population would decrease.

• Baboons would have a food shortage.

• There would be more competition among the lions, hyenas, and cheetahs.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-2

The graph here shows the populations, over several years, for two animals that share a habitat. Foxes are mammals that hunt for food, and grouse are birds, a common prey animal of foxes.

(See Attached Diagram)

According to the data, in which year did the population of foxes show a decrease that is most likely the result of a decrease in the availability of a source of food?

• 2003

• 2005

• 2008

• 2012

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Take a look at the attached graph. It shows the change in population size of two populations living in the same environment: rabbits and lynx. Lynx are a species of wildcat. Carefully analyze how the increase and decrease in population size of one affect the other. Does this graph show that these populations are competing for the same resources or that they are in a predator-prey relationship?

• As the population of one specie increases, the other specie's population decreases showing they are in a predator-prey relationship.

• As the population of one specie increases, the other specie's population decreases showing they are competing for the same resources.

• As the population of one specie decreases, the other specie's population decreases showing they are in a predator-prey relationship.

• As the population of one specie decreases, the other specie's population decreases showing they are competing for the same resources.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-2

Use the food web to answer the following question: What could be the cause of a decrease in the population of bass?

• An increase in the snail population

• An increase in the snapper turtle population

• An increase in the population of sunfish

• An increase in the minnow population

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-3

An increase in the population of an organism would most likely be associated with which of the following?

• A series of severe weather events in the habitat

• A decrease in necessary resources available

• An expansion of suitable living space

• An increase in animals that prey on the organism

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4