Biodiversity and Population

Which of the following leads to a decrease in biodiversity?

• introduction of invasive species

• prevention of erosion

• ecological land use planning

• pollution control

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.

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

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.

the variety of life in the world or in a particular habitat or ecosystem

• biodiversity

• demography

• carrying capacity

• poaching

A species that is not native to a particular region, has no natural predators, and little competition is a(n)

• consumer species

• producer species

• invasive species

• adapted species

The status of a "threatened species" means:

• they are almost extinct

• they are likely to become endangered

• they are extinct

• their numbers are increasing

What is the variety of genes present?

• bidiversity
• species diversity
• extinction
• genetic diversity

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

• genetic diversity
• ecosystem diversity
• extinction
• species diversity

Greater ____________________ means there are more habitats to support different types of organisms.

• Ecosystem Diversity

• Species Diversity

• Genetic Diversity