Biology EOC Review #2

Front

What is natural selection?

Back

Natural selection is the process by which individuals with favorable traits are more likely to survive and reproduce, leading to the adaptation of populations over time.

Front

What is the significance of variation in a population?

Back

Variation in a population is crucial as it allows for natural selection to occur, enabling some individuals to be better adapted to their environment.

Front

What evidence supports the idea of common ancestry among species?

Back

Similar traits, such as the presence of pouches in marsupials like opossums and kangaroos, suggest that they are descended from a common ancestor.

Front

How does predation influence beetle populations?

Back

Predation can lead to changes in beetle populations, such as an increase in the number of light-colored beetles if they are less visible to predators.

Front

What is a cladogram?

Back

A cladogram is a diagram that shows the evolutionary relationships among various species based on shared characteristics.

Front

What role do mutations play in evolution?

Back

Mutations introduce genetic variation, which can lead to new traits that may be beneficial for survival and reproduction.

Front

Define genotype.

Back

Genotype refers to the genetic makeup of an individual, specifically the alleles they possess for a particular trait.

Front

What is the difference between genotype and phenotype?

Back

Genotype is the genetic constitution of an organism, while phenotype is the observable physical or biochemical characteristics resulting from the genotype.

Front

Explain the concept of adaptation.

Back

Adaptation is a trait that enhances an organism's ability to survive and reproduce in its environment.

Front

What is the importance of molecular data in understanding evolutionary relationships?

Back

Molecular data helps scientists determine genetic similarities and differences, providing insights into the evolutionary relationships between species.