IB Ecological Niches B4 2.1 - 2.2

What is the term used to describe the place where a species lives?

• Niche

• Habitat

• Territory

• Ecosystem

What does the term 'niche' refer to?

• The role of a species within its habitat

• The physical location of a species within its habitat

• The size of a species' population within its habitat

• The genetic diversity of a species within its habitat

Which of the following is included in the role of a species within its habitat?

• What it eats

• Where it migrates

• How it communicates

• How it reproduces

What happens when two species fill the same niche within a habitat?

• They will be in direct competition with each other for resources

• They will form a symbiotic relationship

• They will merge to form a new species

• They will migrate to a different habitat

What must species be adapted to in order to survive in a habitat?

• Abiotic and biotic factors

• Only abiotic factors

• Only biotic factors

• Social factors

What type of respiration requires oxygen?

• Obligate respiration

• Facultative respiration

• Anaerobic respiration

• Aerobic respiration

Which type of organisms can only carry out anaerobic respiration?

• Obligate anaerobes

• Aerobic organisms

• Facultative anaerobes

• Obligate aerobes

What is the main type of respiration for facultative anaerobes?

• Obligate respiration

• Facultative respiration

• Aerobic respiration

• Anaerobic respiration

Which organisms cannot survive in the absence of oxygen?

• Aerobic organisms

• Obligate anaerobes

• Facultative anaerobes

• Obligate aerobes

What is an example of an obligate aerobe?

• Mycobacterium tuberculosis

• Escherichia coli

• Brewers yeast

• Most animals