Ecosystems Part 2 4th Grade

The place in an ecosystem where an organism lives is its __________.

• Niche

• Invasive Species

• Habitat

• Energy

Scientists use a _______ _______ to explain the many interactions of food chains in an ecosystem.

• invasive species

• food web

• limiting factors

• food chain

Tags

NGSS.MS-LS2-2

Each living thing has its own __________ which is its special role that it plays in the ecosystem.

• niche

• habitat

• energy

• mutualism

Food webs represent the flow of ________ in the many different food chains that are present at a particular time in a particular ecosystem.

• niche

• competition

• habitat

• energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Any resource that restricts the growth of populations is called a ____________ ____________.

• structural factor

• biotic factor

• limiting factor

• abiotic factor

Tags

NGSS.MS-LS2-1

An ____________ ___________ is an organism that is introduced into a new ecosystem either accidentally or on purpose by humans.

• food web

• limiting factor

• aquatic terrestrial

• invasive species

Tags

NGSS.MS-LS2-5

________is a symbiotic relationship in which one organism benefits and the other is harmed.

• Mutualism

• Parasitism

• Commensalism

• Symbiotic

The fight for limited resources is called _____________.

• habitat

• mutualism

• competition

• energy

Tags

NGSS.MS-LS2-2

_________is a relationship between two or more kinds of organisms that lasts over time.

• Invasive species

• Niche

• Habitat

• Symbiosis

Tags

NGSS.MS-LS2-2

A symbiotic relationship that benefits both organisms is called ____________.

• mutualism

• parasitism

• habitat

• niche