Energy in an Ecosystem

Which of the following is an example of a biotic factor in an ecosystem?

• sunlight
• stream
• rock
• tree

Tags

NGSS.MS-LS2-4

The basis for the energy in an ecosystem is provided by

• producers
• consumer
• heterotrophs
• chemosynthesis

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Most producers get energy from the Sun using the process of

• cellular respiration
• chemosynthesis
• photosynthesis
• consumption

Tags

NGSS.MS-LS1-6

Decomposers are important to ecosystems because they

• return vital nutrients to the ecosystem
• capture energy from the Sun
• are producers
• can be omnivores

Tags

NGSS.MS-LS2-3

An organism that needs to eat in order to get energy storage molecules is called this.

• consumer

• producer

• decomposer

• starving

__________ matter is matter that makes up the nonliving parts of an ecosystem, such as air, water, and rocks.

• biotic

• molecular

• existential

• abiotic

Tags

NGSS.MS-LS2-3

A(n) __________ consists of all the living and nonliving interactions in a particular area.

• food chain

• food web

• family tree

• ecosystem

Tags

NGSS.MS-LS2-3

What is the original source of energy for organisms in a food chain. 

• plants
• animals
• sunlight
• consumers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which is the best definition of a food chain?

• a model of consumers providing energy to producers
• a method for growing plants without soil
• a process by which plants make food from energy in sunlight
• a path by which energy flow from one living thing to another

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

What role do fungi and bacteria play in the the energy flow of ecosystems?

• producers
• consumers
• decomposers
• nutrients

Tags

NGSS.MS-LS2-3