Reflection Refraction Absorption

Which of the following best describes a food chain?

• A chart showing different types of food

• A sequence that shows how energy is transferred from one organism to another through consumption

• A list of animals found in a specific habitat

• A diagram representing the water cycle

Tags

NGSS.MS-LS2-2

If grasshoppers eat grass and frogs eat grasshoppers, which of the following correctly identifies the trophic levels in this food chain?

• Grasshoppers are primary consumers, frogs are secondary consumers

• Grasshoppers are producers, frogs are primary consumers

• Grasshoppers are producers, frogs are secondary consumers

• Grasshoppers are secondary consumers, frogs are tertiary consumers

Tags

NGSS.MS-LS2-3

What role do decomposers play in a food chain?

• They eat other animals for energy

• They produce food through photosynthesis

• They break down dead organisms and recycle nutrients back into the soil

• 1. They control the population of predators in an ecosystem

Tags

NGSS.MS-LS2-3

What is a food web?

• A chart showing different types of food available in an ecosystem

• A sequence of organisms showing who eats whom in an ecosystem

• A complex network of interconnected food chains in an ecosystem

• A list of animals classified based on their feeding habits

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

Which of the following best describes the relationship between a food chain and a food web?

• A food chain is a simplified version of a food web

• A food web is a simplified version of a food chain

• A food chain and a food web are the same thing

• A food chain and a food web are unrelated concepts

Tags

NGSS.MS-LS2-3

In a food web, what role do omnivores play?

• They only eat producers

• They only eat other consumers

• They eat both producers and consumers

• They are not part of the food web

Tags

NGSS.MS-LS2-3

Which of these is an example of a producer in a food chain?

• Lion

• Rabbit

• Grass

• Snake

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of the following best explains why a food web is more realistic than a simple food chain?

• It shows the movement of energy and nutrients through multiple pathways

• It includes only the primary producers in an ecosystem

• It excludes decomposers from the ecosystem

• It illustrates a linear relationship between organisms

Tags

NGSS.MS-LS2-3

What happens to an ecosystem if a key predator within the food web becomes extinct?

• The ecosystem becomes more stable

• The populations of prey species decrease

• The populations of prey species increase

• The ecosystem collapses

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of the following best describes energy transfer in an ecosystem?

• The movement of matter between organisms

• The conversion of sunlight into nutrients by producers

• The flow of energy from one organism to another in the form of food

• The process of photosynthesis in plants

Tags

NGSS.MS-LS2-3