Ecological Interactions

Autotrophs make up the _______ level in all ecosystems.

• First
• Second
• Third
• Fourth

Which symbiosis is represented in the picture? 

• parasitism 
• mutualism
• commensalism
• nonalism 

Tags

NGSS.MS-LS2-2

A symbiotic relationship in which both organisms benefit:

• Competition.
• Mutualism.
• Commensalism.
• Parasitism.

Tags

NGSS.MS-LS2-2

This is an image of a _________.

• consumer
• scavenger
• decomposer
• producer

An illustration that uses arrows to show the many possible directions in which matter and energy can pass through the organisms in an ecosystem.

• Food chain
• Food web
• Energy Pyramid

The energy at each trophic level in food webs, chains, and energy pyramids ______.

• decreases
• increases
• stays the same

The nonliving parts of an ecosystem.

• Abiotic factors
• Biotic factors

Tags

NGSS.MS-LS2-3

A collection of organisms that make up a community as well as all of the nonliving parts of the environment.

• Population
• Community
• Habitat
• Ecosystem

The living parts of the ecosystem.

• Biotic factors
• Abiotic factors

Tags

NGSS.MS-LS2-4

NGSS.MS-LS1-1

NGSS.MS-LS1-5

A collection of organisms that belong to different populations but all live in the same area and interact with one another.

• Population
• Ecosystem
• Community
• Ecosphere