Ecosystems

the part of Earth where organisms live

• biotic factors

• biosphere

• ecology

• biology

organisms that make up the living part of an ecosystem

• abiotic

• biotic factors

• ecology

• ecosystems

nonliving things found in an ecosystem

• factories

• factor trees

• biotic factors

• abiotic factors

a group of the same type of organisms living in the same place at the same time

• threatened species

• populations

• community

• limiting factor

All of the populations that live in one area together

• limiting factors

• populations

• community

• speed limit

Tags

NGSS.3-LS2-1

something that limits the size of a population

• maxfactor

• factor tree

• the x factor

• limiting factor

Which is a biotic factor?

• sunlight
• air 
• bacteria
• all of the above

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which statement is correct?

• A population is the same as a community
• A community is a group of populations
• A community is a part of a population
• A population is a group of communities

Temperature, light, air, water, and soil are all _____ parts of the environment

• alive

• biotic

• abiotic

• living

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

A population is...

• A group of one species in one area

• Multiple species that live in one area

• All of the living and nonliving things in an area

• None of these