Evolution CFA

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring. It is a key mechanism of evolution.

Front

Define selective pressure.

Back

Selective pressure refers to any phenomena which alter the behavior and fitness of living organisms within a given environment, influencing which traits are advantageous.

Front

What is allele frequency?

Back

Allele frequency is the proportion of a specific allele among all allele copies in a population. It is a measure of genetic variation.

Front

Explain the concept of fitness in evolutionary biology.

Back

Fitness refers to an organism's ability to survive and reproduce in its environment. Higher fitness means a greater likelihood of passing on genes to the next generation.

Front

What is genetic drift?

Back

Genetic drift is a mechanism of evolution that refers to random changes in allele frequencies in a population, which can lead to significant changes over time.

Front

How does habitat availability act as a selective pressure?

Back

Habitat availability influences the survival of species by determining the resources available, which can affect reproductive success and survival rates.

Front

What is the significance of camouflage in evolution?

Back

Camouflage helps organisms avoid detection by predators, increasing their chances of survival and reproduction, thus influencing natural selection.

Front

Define mutation in the context of evolution.

Back

A mutation is a change in the DNA sequence of an organism's genome, which can introduce new genetic variation into a population.

Front

What role does competition play in natural selection?

Back

Competition for resources such as food, mates, and habitat can lead to natural selection, as individuals with advantageous traits are more likely to survive and reproduce.

Front

Explain the term 'adaptive radiation.'

Back

Adaptive radiation is the process by which organisms diversify rapidly into a wide variety of forms to adapt to different environments.