Unit 2 Test REVIEW - Ecology & Biodiversity

A region that includes tigers, eagles, lizards, fish, rabbits, and many other types of organisms would be described as having a high level of

• Genetic Diversity
• Species Diversity
• Ecosystem Diversity
• Energy Diversity

The biggest cause of biodiversity loss worldwide is...

• Habitat loss/habitat alteration
• Over Hunting
• Climate Change
• Pollution

Microevolution is...

• Evolution that gives rise to new species
• a type of convergent evolution
• evolution that happens at the genetic level within a species
• a type of divergent evolution

A _____________ species is one who's impact on the ecosystem is far more important than expected based on its abundance. If it was removed then the entire ecosystem would collapse.

• Endangered
• Keystone
• Indicator
• Favorite

High levels of biodiversity tend to have..

• Little to no effect on an ecosystems health
• A positive effect on an ecosystems health, making it more stable
• A negative effect on an ecosystems health, making it less stable
• Neither resilient nor resistant effects on an ecosystems health

One way that zoos and aquariums help increase wildlife populations is through

• captive breeding programs
• international biodiversity treaties
• conservation concessions
• wildlife corridors

Which ecosystem would have the most primary productivity?

• tundra
• desert
• tropical rain forest
• taiga

Ecologists use similarities between ecosystems to classify them into broad categories based on their climates. These are called

• littoral zones
• estuaries
• communities
• biomes

Which Biome would have the lowest gross primary production?

• coral reefs
• rain forest
• desert
• salt marsh

Water with a salinity that is greater than fresh water but less than saltwater is classified as

• photic
• aphotic
• brackish
• littoral