Biodiversity Basics

Biodiversity Lesson

​

Multiple Choice

Which of the following is NOT a type of  biodiversity?

• species
• genetic
• ecosystem
• individual

Multiple Select

Select all the correct answers.

Which are examples of ecosystem diversity?

• variety of traits found in domestic dogs

• a forest

• a variety of birds in a garden

• a grassland

• an arid desert

Multiple Choice

 Which biome is more likely to survive a change in the environment?

• High (rich) biodiversity
• Low (poor) biodiversity

Multiple Choice

species that are native to and found only within a limited area

• endemic

• exotic

• endangered

• extinct

Multiple Choice

a species that is not native to a particular region

• endemic

• exotic

• endangered

• extinct

Multiple Choice

Which habitat exhibits the greatest biodiversity?

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

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

Multiple Choice

Why are migratory species harder to protect?

• They don’t stay in one place long enough to be counted.

• The specific habitats along and at each end of their migration routes must be protected.

• There are too many to count.

• They migrate from one country to another.

Multiple Choice

Some species are so important to the functioning  of an ecosystem that they are called

• keystone species
• cornerstone species
• essential species
• exotic species

Multiple Choice

Biodiversity ________ are regions with  unusually large numbers of unique ________.

• hot spots ; species
• species ; hot spots
• biomes ; plants
• sanctuaries ; flora

Multiple Choice

Which area would have less biodiversity? 

• desert
• forest
• ocean
• lake

Multiple Choice

Where are many biodiversity hotspots located? 

• deserts
• tropical rain forests
• polar ice regions
• rocks

Multiple Choice

How can humans best help an endangered species avoid extinction?

• they can feed the animals
• they can put the animals in a zoo
• they can protect the animal’s habitat
• they can take the animal to new habitats

Multiple Choice

What is THE most major cause of extinction today?

• habitat destruction by humans
• poaching
• disease
• hunting

Multiple Choice

Match each threat to biodiversity to its possible result.

Climate change

• cutting down trees in tropical forest

• collection of industrial waste in water bodies

• gradual increase in global temperature

• extinction of specific species that serve as food

Multiple Choice

Match each threat to biodiversity to its possible result.

Pollution

• cutting down trees in tropical forest

• collection of industrial waste in water bodies

• gradual increase in global temperature

• extinction of specific species that serve as food

Multiple Choice

Match each threat to biodiversity to its possible result.

Overexploitation of resources

• cutting down trees in tropical forest

• collection of industrial waste in water bodies

• gradual increase in global temperature

• extinction of specific species that serve as food

Multiple Choice

Match each threat to biodiversity to its possible result.

Habitat loss

• cutting down trees in tropical forest

• collection of industrial waste in water bodies

• gradual increase in global temperature

• extinction of specific species that serve as food

Multiple Choice

This is the extinction of a species one by one, not a sudden loss of many species

• background extinction

• mass extinction

• fragmentation

• biotic potential

Multiple Choice

What is the practice of harvesting or hunting to such a degree that remaining individuals may not be able to replenish the population called?

• pollution

• deforestation

• overexploitation

• acid rain

Multiple Choice

The primary causes of extinction (and endangerment and threatened status) is...

• polar ice cap melting

• global warming

• habitat loss and degradation

• burning of fossil fuels

Multiple Choice

How does habitat fragmentation reduce genetic diversity in species?

• Habitat fragmentation makes nonnative species introduction possible.

• Habitat fragmentation opens migration routes.

• Habitat fragmentation isolates a large population into smaller groups.

• Habitat fragementation encourages open gene flow.

Multiple Choice

Habitat loss is a big threat to biodiversity, because as habitat size decreases, the number of species

• increases

• decreases

• stays the same

Multiple Choice

Climate change, due in part to burning fossil fuels, results in which of the following?

• ocean acidification that can dissolve shells

• increased surface and ocean temperatures

• sea level rise

• melting glaciers and ice sheets

• all of these

Multiple Choice

What is the practice of harvesting or hunting to such a degree that remaining individuals may not be able to replenish the population called?

• pollution

• deforestation

• overexploitation

• acid rain

Multiple Choice

the breaking of habitats into smaller pieces is called...

• habitat division

• habitat pollution

• habitat corruption

• habitat fragmentation

Multiple Choice

The number of different species and the abundance of each species in a biological community.

• genetic diversity
• ecosystem diversity
• extinction
• species diversity

Multiple Choice

What is the variety of genes present?

• bidiversity
• species diversity
• extinction
• genetic diversity

Multiple Choice

The loss of habitat

• pollution
• poaching
• habitat fragmentation
• habitat destruction

Multiple Choice

How does habitat fragmentation reduce genetic diversity in species?

• Habitat fragmentation makes nonnative species introduction possible.

• Habitat fragmentation opens migration routes.

• Habitat fragmentation isolates a large population into smaller groups.

• Habitat fragementation encourages open gene flow.

Multiple Choice

The primary causes of extinction (and endangerment and threatened status) is...

• polar ice cap melting

• global warming

• habitat loss and degradation

• burning of fossil fuels

Multiple Choice

A species is defined as endangered when it

• suffers from damage to its habitat.
• suffers from disease or predation.
• when there are hazards to the continued life of the species.
• all of the above

Multiple Choice

An endangered species is

• One whose numbers are so small that it is at risk of extinction
  
• One whose not been spotted after many years.
• One whose numbers are abundant.

Multiple Choice

Why do the populations of invasive species grow so quickly? 

• Invasive Species are native to an area. 
• Invasive species are prey to many animals.
• Invasive species have no predators.
• Invasive species keep the ecosystems in equilibrium.

Multiple Choice

1. What makes a species invasive?

• Moving to a new ecosystem and taking resources from natives 
• Not having papers
• Species that can't adapt
• Plants that take up too much space