Biology Category 3 Evolution

Front

What does it mean if two animals have high amounts of their DNA sequence in common?

Back

It indicates that the animals are closely related and share a common ancestor.

Front

Which rock layer contains the oldest fossils?

Back

The rock layer that is lowest in the geological column typically contains the oldest fossils.

Front

How does natural selection lead to adaptations in species?

Back

Natural selection favors individuals with traits that enhance their survival and reproduction, leading to adaptations over generations.

Front

What is an example of a beneficial trait passed from parents to offspring?

Back

The ability of green anoles to change skin color rapidly in response to stimuli is a beneficial trait that has been passed down.

Front

What is gene flow?

Back

Gene flow is the transfer of genetic material between populations, often through mechanisms like cross-pollination.

Front

What is the significance of pectoral fins in blue flying fish?

Back

Enlarged pectoral fins allow blue flying fish to glide above the ocean surface, helping them escape predators.

Front

What is the role of environmental factors in evolution?

Back

Environmental factors can influence which traits are advantageous, leading to natural selection and evolution.

Front

What is the difference between evolution and adaptation?

Back

Evolution refers to changes in the genetic makeup of a population over time, while adaptation is a specific trait that enhances survival in a particular environment.

Front

What is selective breeding?

Back

Selective breeding is the process by which humans breed plants or animals for specific traits.

Front

What is hybrid sterility?

Back

Hybrid sterility occurs when the offspring of two different species are unable to reproduce.