Evolution and Biodiversity Concepts

The video explores ecological succession, population dynamics, and evolution, focusing on genetic variation and natural selection. It contrasts natural and artificial selection, delves into coevolution in predator-prey dynamics, and discusses extinction's impact on biodiversity.

What is the process called when different populations in a community change the ecosystem, allowing new populations to outcompete the existing ones?

• Genetic drift

• Natural selection

• Ecological succession

• Artificial selection

How does evolution primarily occur within a population?

• Through changes in gene frequencies over generations

• By the extinction of less adapted species

• By sudden mutations in a single generation

• Through the migration of new species

What is the main mechanism by which evolution operates?

• Artificial selection

• Natural selection

• Ecological succession

• Genetic engineering

In the context of coevolution, what is an 'arms race'?

• A competition for food resources

• A competition between species to develop better weapons

• A race to colonize new habitats

• A mutual adaptation process between predators and prey

Which of the following is NOT a predator adaptation?

• Photosynthesis

• Venom

• Speed

• Camouflage

Why is genetic variability important for a population's survival?

• It increases the population size

• It allows adaptation to environmental changes

• It ensures all individuals are identical

• It prevents natural selection

What happens to a population if it cannot adapt to a new environmental condition?

• It goes extinct

• It migrates to a new habitat

• It remains unchanged

• It thrives and expands

What is a significant factor contributing to the current mass extinction?

• Volcanic eruptions

• Natural climate cycles

• Meteor impacts

• Human actions

Which of the following characteristics makes a population more vulnerable to extinction?

• Low genetic variability

• Large population size

• Short generation times

• High genetic diversity

What is the impact of extinction on biodiversity?

• It stabilizes biodiversity

• It increases biodiversity

• It has no effect on biodiversity

• It diminishes biodiversity