Ecological Niche Classifications

A bacterium thrives in an oxygen-free environment and derives energy from inorganic compounds. How would you classify it?

• Obligate anaerobe, autotroph

• Facultative anaerobe, heterotroph

• Obligate aerobe, autotroph

• Facultative anaerobe, saprotroph

A plant species uses sunlight to produce its own food but can also absorb nutrients from insects. What is its classification?

• Mixotroph

• Herbivore

• Obligate aerobe

• Heterotroph

A fungus decomposes organic matter and releases nutrients back into the environment. What is its classification?

• Obligate anaerobe

• Autotroph

• Herbivore

• Saprotroph

Tags

NGSS.MS-LS2-3

A fish species can survive in both oxygen-rich and oxygen-poor environments, consuming plants and small insects. How would you classify it?

• Obligate anaerobe, autotroph

• Facultative anaerobe, omnivore

• Obligate aerobe, carnivore

• Facultative anaerobe, herbivore

Tags

NGSS.HS-LS4-4

An organism lives in deep ocean vents, utilizing chemical reactions with sulfur compounds to obtain energy. What is its classification?

• Mixotroph

• Heterotroph

• Autotroph

• Obligate aerobe

Tags

NGSS.HS-LS2-3

A bird primarily eats seeds but occasionally consumes insects. How would you classify it?

• Herbivore

• Omnivore

• Carnivore

• Saprotroph

An organism can switch between using oxygen for metabolism and fermenting sugars when oxygen is scarce. What is its classification?

• Autotroph

• Obligate aerobe

• Obligate anaerobe

• Facultative anaerobe

Tags

NGSS.HS-LS2-5

A mammal feeds exclusively on other animals. How would you classify it?

• Carnivore

• Herbivore

• Mixotroph

• Omnivore

A microorganism found in soil can photosynthesize and also consume dissolved organic carbon. What is its classification?

• Obligate anaerobe

• Heterotroph

• Saprotroph

• Mixotroph

Tags

NGSS.HS-LS2-5

A reptile eats both plants and other animals, depending on the availability of food. How would you classify it?

• Omnivore

• Autotroph

• Carnivore

• Herbivore