3.1 Biodiversity 2.0

Which community has higher species evenness?

• Community A

• Community B

What is the species richness of the community?

Species richness is

• a measure of how all of the individual organisms in an ecosystem are balanced between the different species.

• the total number of different species found in an ecosystem

An ecosystem with high genetic diversity is healthier than an ecosystem with low genetic diversity.

• True

• False

• Neither

These generate money through recreation at a National Park.

• Cultural services

• Provisioning services

• 
  Supporting services

• 
  Regulating services

Which island would be the most biodiverse?

• Small island far from the mainland

• Large island close to the mainland

• Small island close to the mainland

• Large island far from the mainland

Species diversity ___ the further from the mainland.

• decreases

• increases

• stabilizes

A hurricane is a(n) ___ disturbance.

• anthropogenic

• natural

True or false: primary succession has to finish first before secondary succession starts up.

• True

• False

What is a keystone species?

• Keys and stones have nothing to do with ecology

• 
  A species that lives in or around rocks

• A keystone isn't a living thing, it's just a stone

• A species that helps to hold an ecosystem together