#049 Biodiversity

#049 Biodiversity

Multiple Choice

Biodiversity, aka biological diversity, usually refers to

• the same species in a general location

• the number of different species in a given area

• the number of animal species in a given area

• the number of plant species in a given area

Multiple Choice

Define ecosystem diversity

• variety of ecosystems in a given area

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

• variety of life in Earth's land, freshwater, and marine ecosystems

• changes to an ecosystem that affect how the parts of it interact

Multiple Choice

Which statement best describes an example of low species diversity?

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

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

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

Multiple Choice

Which statement best describes an example of high species diversity?

• A pond ecosystem is populated by a single species of frogs

• A state park includes multiple forest and freshwater ecosystems with many different species of fish, frogs, and birds

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

Multiple Choice

Define genetic diversity

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

• variety of ecosystems in a given area

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

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

Multiple Choice

Why is "A" less biodiverse than "B"?

• Image "A" is more biodiverse.

• Image "A" has many corn plants and this makes it have high "rich" biodiversity.

• Image "A" has a lot more plants than image "B"

• Even though "A" has a lot of corn plants they are all the same species and makes this a low "poor" biodiverse area.

Multiple Choice

Which represents an example of a limited biotic resource?

• low oxygen levels in a pond that can affect fish populations

• fungi destroying fruit of a banana tree of which insects feed on

Multiple Choice

Which represents an example of a limited abiotic resource?

• low oxygen levels in a pond that can affect fish populations

• fungi destroying fruit of a banana tree of which insects feed on

Multiple Choice

A species that is likely to become extinct if protective measures are not taken immediately is known as

• threatened species

• endemic species

• keystone species

• endangered species

Multiple Choice

What is an invasive species?

• A native (naturally found) species which are added to an area. 
• A non-native (not naturally found) species added to an area. 
• A keystone species in an environment
• none of the above

Multiple Choice

Invasive species alter the ecosystem by _____ in number quickly. This leads to _____ food for the native species.

• increasing, less

• increasing, more

• decreasing, less

• decreasing, more

Multiple Choice

Name the levels of an ecosystem in order from smallest to largest.

• Ecosystem, population, organism, community

• Community, organism, population, ecosystem

• Organism, population, community, ecosystem

• Ecosystem, community, population, organism

Multiple Choice

What are the greatest problems facing plants, animals, and people?

• introducing new species that  can cause problems 
• habitat destruction
• illegal hunting 
• all of the above

Multiple Choice

What does it mean when an animal is endangered?

• Something once lived but no longer exists.
• Animals that is at risk of extinction.
• Place that protects animals at risk.

Multiple Choice

What does it mean when an animal is extinct?

• Something once lived but no longer exists.
• Animals that is at risk of extinction.
• Place that protects animals at risk.

Multiple Choice

Why do endangered species matter?

• Because they are cute

• Biodiversity

• Because if they die we cannot have them as pets

• Because they cannot be in the zoo