Food Chains and Food Webs

What is the term used to describe the movement of energy through a series of organisms in an ecosystem?

• energy transfer

• energy cycle

• energy transformation

• energy flow

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What are the different trophic levels in a food web?

• autotrophs, heterotrophs, detritivores, saprophytes

• predators, prey, scavengers, decomposers

• plants, herbivores, carnivores, omnivores

• producers, primary consumers, secondary consumers, and tertiary consumers

Tags

NGSS.MS-LS2-3

Which trophic level contains the primary producers?

• Second trophic level

• Third trophic level

• First trophic level

• Fourth trophic level

What is the main source of energy in most food chains?

• wind

• sun

• fire

• water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What happens to energy as it moves up the trophic levels in a food chain?

• Energy decreases

• Energy increases

• Energy stays the same

• Energy fluctuates

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the term used to describe the amount of energy available to the next trophic level in a food chain?

• energy transfer

• trophic energy

• food chain energy

• trophic level energy

Tags

NGSS.MS-LS2-3

What is the process by which plants convert sunlight into chemical energy?

• photosynthesis

• chemosynthesis

• respiration

• transpiration

Tags

NGSS.MS-LS1-6

What is the formula to calculate net primary productivity?

• NPP = GPP + R

• NPP = GPP * R

• NPP = GPP - R

• NPP = GPP / R

What factors can affect net primary productivity in an ecosystem?

• Pollution levels, wind speed, and soil type.

• Human activities, precipitation, and altitude.

• Animal migration patterns, pH levels, and atmospheric pressure.

• Availability of sunlight, temperature, water availability, nutrient availability, and presence of pests or diseases.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

Why is net primary productivity important in an ecosystem?

• Net primary productivity has no impact on the energy available in an ecosystem.

• Net primary productivity only affects a small portion of the ecosystem.

• Net primary productivity is important because it determines the amount of energy available to support the entire ecosystem.

• Net primary productivity is not important in an ecosystem.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3