IB ESS Topic 2

A system made up of organisms interacting with one another

• biology

• society

• ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The non-living parts of an ecosystem, such as water, sun, & oxygen are called 

• habitat

• abiotic factors

• biotic factors

• ecology

Tags

NGSS.MS-LS2-3

The living factors of an ecosystem, such as plants, animals, & fungi are called

• biotic factors

• abiotic factors

• ecosystem

• population

An important abiotic factor in ALL ecosystems is the 

• ecology

• climate

• plants

• animals

Tags

NGSS.MS-LS2-3

All life on Earth exists in a region known as 

• an ecosystem

• a biome

• the biosphere

• ecology

Autotrophs are organisms that

• rely on other organisms for their energy & food supply.

• consume plant & animal remains and other dead matter.

• use energy they take in from the environment to convert inorganic molecules to organic molecules.

• obtain energy by eating only plants.

Why are decomposers necessary?

• Because we compose too much...

• To take basic materials and make them more complex...

• To take complex materials and break them down to basic stuff...

• So demusic can be really good...

Tags

NGSS.MS-LS2-3

__________ primary productivity is the total amount of energy that producers convert to chemical energy in organic molecules per unit of time.   

• Net

• Total

• Gross

• None of the above

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

__________productivity = the organic materials that remain after photosynthetic organisms in the ecosystem have used some of these compounds for their cellular energy needs (cellular respiration).

• Gross

• Primary

• Net

• Secondary

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The rate at which producers convert radiant energy into chemical energy

• trophic level

• net primary productivity

• gross primary productivity

• photosynthesis

Tags

NGSS.MS-LS1-6