3.1 Biodiversity

The level of biodiversity that involves a variety of habits and communities is _____ diversity.

• ecosystem

• population

• genetics

• species

What level of biodiversity is most commonly equated with the overall concept of biodiversity?

• species

• genetics

• ecosystem

• population

Why is biodiversity important to ecosystems?

• It provides more abiotic factors for the ecosystem.

• 
  It helps populations adapt to ecological changes.

• it increases at each level of the food chain.

• It is not important at all, just a propaganda terminology

How many species are known to be living on Earth?

• 
  between 5 and 9 million

• between 1 and 2 million

• 
  between 10,000 and 100,000

• between 10 and 50 million

Biodiversity, aka biological diversity, usually refers to

• the number of plant species in a given area

• the same species in a general location

• the number of animal species in a given area

• the number of different species in a given area

Define genetic diversity

• 
  system made up of all the living and nonliving things in a given area

• variety of ecosystems in a given area

• disturbance in the environment conditions that cause genetic changes to occur in organisms

• variation of genes within a species or population in a given area

Which habitat exhibits the greatest biodiversity?

• 
  A habitat with 15 different species with about 300 individuals each

• 
  A habitat with 15 different species with about 300 individuals each

• A habitat with only one species with about 2000 individual

• 
  A habitat with 10 different species with about 75 individuals each

Which statement best describes an example of low species diversity?

• A state park includes multiple forest, wetland, and freshwater ecosystems

• 
  A population of frogs has a wide variety of skin colors

• 
  A desert ecosystem is populated only by organ pipe cacti, camels, and armadillo lizards

• A marsh ecosystem is covered by a single species of cattail bulrushes