Evolutionary Biology Concepts Quiz

What is the definition of variation in the context of evolutionary biology?

• The process by which new species are created.

• The differences in physical traits among individuals of the same species.

• The gradual change of a species over time.

• The ability of an organism to change its traits in response to environmental changes.

Which of the following is an example of variation in bearded dragons?

• All bearded dragons can change color to regulate their body temperature.

• Some bearded dragons have longer tails than others.

• Bearded dragons that eat more insects grow larger.

• Bearded dragons live in various parts of Australia.

What does overproduction refer to in evolutionary biology?

• The excessive use of resources by an organism.

• The production of more offspring than can possibly survive.

• The increase in size of an organism over its lifetime.

• The rapid growth of a population in an ecosystem.

Which of the following is an example of overproduction in bearded dragons?

• A bearded dragon laying more eggs than the number of available nesting sites.

• A bearded dragon growing larger when provided with abundant food.

• Bearded dragons displaying bright colors to attract mates.

• A bearded dragon eating every insect it encounters.

What is the definition of competition in evolutionary biology?

• The cooperation between different species to ensure survival.

• The struggle between organisms to survive as they attempt to use the same limited resources.

• The process by which species adapt to their environment.

• The movement of organisms from one habitat to another.

Which of the following is an example of competition among bearded dragons?

• Two bearded dragons basking on the same rock to absorb heat.

• A bearded dragon shedding its skin more frequently in hot weather.

• Bearded dragons spreading their beard to appear larger to predators.

• A bearded dragon digging a burrow to escape the heat.

What does adaptation mean in evolutionary biology?

• The process by which a species becomes better suited to its environment.

• The migration of a species to a more suitable habitat.

• The decrease in a population due to environmental pressures.

• The development of new species from existing ones.

Which of the following is an example of adaptation in bearded dragons?

• A bearded dragon growing larger in a nutrient-rich environment.

• Bearded dragons that can change their skin color to reflect more sunlight and regulate their body temperature.

• A bearded dragon moving to a shaded area to cool down.

• Bearded dragons laying eggs in the summer when temperatures are higher.

What is meant by "descent with modification" in evolutionary biology?

• The idea that new generations are identical to their ancestors.

• The concept that each generation will be exactly half as fit as the previous one.

• The principle that over the many generations, the beneficial trait will be shared by most of the population.

• The belief that all organisms are descended from a single common ancestor.

Which of the following is an example of descent with modification in bearded dragons?

• A bearded dragon population will mostly all have the beneficial adaptation of camouflage scales acquired through many generations of inheritance.

• A bearded dragon that grows to the same size as its parents.

• Bearded dragons that live in the same area as their parents.

• A bearded dragon that eats the same type of insects as its parents.