Science 8 Booster Lesson Week of 2/10

an organism that can make its own food

• producer

• primary consumer

• secondary consumer

• tertiary consumer

Tags

NGSS.MS-LS1-6

Which statement explains why populations in upper trophic levels tend to have less total mass than populations in lower trophic levels?

• Populations in upper trophic levels are more complex than populations in lower trophic levels.

• Populations in upper trophic levels have less available habitat than populations in lower trophic levels

• Populations in upper trophic levels have less available energy than populations in lower trophic levels.

• Populations in upper trophic levels have more nutrient requirements than populations in lower trophic levels.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which statement best describes one way energy flows through this food web?

• Energy flows from American alligators to mud turtles to water plants.

• Energy flows from American alligators to blue herons to grass carp fish.

• Energy flows from water plants to mud turtles to American alligators to grass carp fish.

• Energy flows from water plants to grass carp fish to blue herons to American alligators.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

How can an increase in the diversity of producer and decomposer populations most likely affect the stability of an ecosystem?

• Stability would increase because more light energy would be available.

• Stability would increase because more populations would be supported.

• Stability would decrease because fewer nutrients would be returned to the soil.

• Stability would decrease because less energy would be available to consumers.

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Those organisms that obtain energy by feeding on other organisms and their remains.

• producer

• consumer

• decomposer

Tags

NGSS.MS-LS2-3

An organism, often microscopic in size, that obtains nutrients by consuming dead organic matter, thereby making nutrients accessible to other organisms; examples include fungi, scavengers, insects and other animals.

• producer

• consumer

• decomposer

Tags

NGSS.MS-LS2-3

Which BEST describes what the arrows represent in the food web.

• the arrows represent that the food web contains plants, rabbit, deer, and wolf

• arrows point from a certain type of organism to whatever it eats

• the transfer of energy

• the arrows are just showing us the size of organisms from smallest to largest

Tags

NGSS.MS-LS2-3

Which statement best explains why a food web more completely represents the flow of energy through an ecosystem than a food chain does?

• Most ecosystems have too many organisms to fit into a food chain

• More energy flows through most ecosystems than a single food chain can show

• Relationships between organisms usually change quickly enough to make food chains inaccurate.

• . There are more relationships between organisms than can be shown in a single food chain.

Tags

NGSS.MS-LS2-3

type of consumer that eats producers

• primary consumer

• secondary consumer

• tertiary consumer

• producer

Tags

NGSS.MS-LS2-2

type of consumer that eats secondary consumers

• primary consumer

• secondary consumer

• tertiary consumer

• producer

Tags

NGSS.MS-LS2-3