IB Biology Topic 4.1

Organisms that cannot make their own food and must obtain energy from external sources are called

• autotrophs
• heterotrophs
• thylakoids
• plants

A hetereotroph

• is a consumer

• is a producer

• is an autotroph

Organisms that make their energy /organic compounds from inorganic/abiotic sources

• consumer

• decomposer

• saprotrophs

• autotrophs

Organisms that make their energy /organic compounds from organic/biotic sources

• populations

• heterotrophs

• producers

• autotrophs

Tags

NGSS.MS-LS2-3

Species are

• organisms that can interbreed but produce infertile offspring

• organisms that reproduce asexually

• organisms that cannot reproduce

• organisms that can interbreed to produce offspring

Tags

NGSS.HS-LS4-2

Which of the following are necessary for a sustainable mesocosm?

• light/energy source

• carnivore

• producer/autotroph

• decomposer

Tags

NGSS.MS-LS2-3

What is the role of producers in the environment?

• recycle nutrients

• produce oxygen

• produce the initial energy by trapping it in glucose

• balance populations in the ecosystem

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the role of consumers in the environment?

• recycle nutrients

• produce oxygen

• produce the initial energy by trapping it in glucose

• balance populations in the ecosystem

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

What is Chi Squared used for?

• to count the number of species in an area

• to calculate the effects of consumers on an ecosystem

• to determine the distribution of a species

• to determine if there is an association in distribution between 2 species

What is the role of detritivore in the environment?

• break down dead plants and animals and recycle nutrients

• produce oxygen

• produce the initial energy by trapping it in glucose

• balance populations in the ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3