Energy Transfer in Ecosystems

Which of the organisms in the food web are producers?

• corn, flowering plant, fruit fly, dragon fly

• corn, flowering plant, lavenders, mangoes

• corn, flowering plant, butterfly, frog

• corn, flowering plant, grasshopper, fruit fly

Tags

NGSS.MS-LS2-3

Producers are also called

• heterotrophs

• consumers

• autotrophs

• animals

What is a model that shows ALL the feeding relationships in an ecosystem?

• habitat

• biosphere

• food chain

• food web

Tags

NGSS.MS-LS2-3

In an ecosystem, how are food webs and food chains different?

• Food webs show the relationship between many different food chains in a single ecosystem. Food chains show one path of energy transfer in an ecosystem.

• Food chains show the relationship between many different food webs in a single ecosystem. Food webs show one path of energy transfer in an ecosystem

• Food webs rarely begin with plants, and food chains begin with animals.

• Food webs begin with animals, and food chains begin with plants.

Tags

NGSS.MS-LS2-3

The algae at the beginning of the food chain are

• consumers

• decomposers

• producers

• heterotrophs

Tags

NGSS.MS-LS2-2

What is the purpose of a food chain?

• shows the transfer of energy between trophic levels

• shows what organisms eat which foods

• depicts the predator/prey relationships between organisms

• shows the importance of the Sun's energy

Tags

NGSS.MS-LS2-3

Which tool shows the amount of energy available at each feeding level?

• food chain

• food web

• food pyramid

• energy pyramid

A predator is the animal at the top of a food chain.

• top or apex

• primary

• secondary

• tertiary

Which grouping is an example of a possible food chain?

• cow --> grass --> human

• grass --> cow --> human

• ant --> grass --> cow

• grass --> human --> cow

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Why does a food chain begin with plants?

• They produce food from light energy, carbon dioxide, and water.

• All the species of the ecosystem depend on them for food.

• They do not depend on other living creatures for food.

• All of the above

Tags

NGSS.MS-LS1-6