Biodiversity

The number and variety of species in an ecosystem is referred to as _____________.

• Ecodiversity
• Natural Balance
• Biodiversity
• Homeostasis

TRUE OR FALSE:
A healthy ecosystem only a few different species.

• True
• False

 The three levels of biodiversity are genetic, __________, and ecosystem diversity

• population
• community
• biome
• species

Diverse habitat Ample Nutrients, Rain, Temperature, and Survival are factors which _____________ biodiversity.

• increase
• decrease

Environmental stress, limitation of nutrients or habitat, the introduction of invasive species, and geographic isolation are factors which _____________ biodiversity.

• increase
• decrease

_____________- a species of animal or plant that is seriously at risk of extinction.

• Endangered Species
• Threatened Species

_________________ - any species which are vulnerable to endangerment in the near future.

• Endangered Species
• Threatened Species

The end (dying off) of an organism or of a group of organisms.

• Global Extinction
• Group extinction
• Species extinction
• Mass endangerment

The extinction of a large number of species within a relatively short period of geological time.

• Mass endangerment
• Group extinction
• Species extinction
• Global extinction

True or False:
Humans have no need to be concerned about other species going extinct, we only need to worry about our own survival.

• True
• False