Biodiversity and Evolution Quiz

What is the primary driver of evolution within an ecosystem?

• Natural selection

• Environmental changes

• Genetic mutations

• Human intervention

In an evolutionary arms race, what happens between two species?

• They merge into one species

• They compete for the same resources

• They become extinct

• They drive each other's evolution

Which type of selection results in two extreme traits becoming more common?

• Directional selection

• Stabilizing selection

• Disruptive selection

• Artificial selection

What is allopatric speciation?

• Speciation without geographic separation

• Speciation within a single population

• Speciation due to geographic barriers

• Speciation due to genetic mutations

Which species type acts as an early warning system for environmental changes?

• Foundation species

• Keystone species

• Indicator species

• Generalist species

What characterizes a generalist species?

• Broad niche and varied diet

• Narrow niche and specific diet

• High sensitivity to environmental changes

• Dependence on a single food source

What is the main difference between primary and secondary succession?

• Primary succession occurs faster

• Primary succession involves fire

• Secondary succession starts with soil

• Secondary succession lacks pioneer species

What does species richness refer to?

• The dominance of one species over others

• The genetic diversity within a species

• The abundance of a single species

• The number of different species

How does island size affect biodiversity?

• Larger islands have more species

• Island size does not affect biodiversity

• Larger islands have fewer species

• Smaller islands have more species

What is the range of tolerance in an ecosystem?

• The range of species diversity

• The range of environmental conditions an organism can endure

• The range of food sources available

• The range of habitats an organism can occupy