Biology EOC STAAR Evolution

What is natural selection?

• The process by which organisms intentionally change their traits to better survive in their environment.

• The process by which species become extinct due to environmental changes.

• The process by which individuals adapt to their environment over time.

• The process by which certain traits or characteristics become more or less common in a population over time, based on their ability to survive and reproduce in a given environment.

Explain the process of natural selection.

• Natural selection is the process by which genetic mutations occur randomly in a population.

• Natural selection is the process by which organisms intentionally adapt to their environment.

• Natural selection is the process by which certain traits or characteristics become more or less common in a population over time.

• Natural selection is the process by which individuals choose their mates based on desirable traits.

What are the four main principles of natural selection?

• variation, inheritance, selection, and time

• acquired characteristics, artificial selection, genetic recombination, and population size

• genetic drift, gene flow, genetic variation, and reproductive success

• adaptation, mutation, competition, and survival

Give an example of natural selection in action.

• Development of flight in birds

• Evolution of antibiotic resistance in bacteria

• Photosynthesis in plants

• Formation of mountains through tectonic activity

What is adaptation?

• The process of resisting change in the environment.

• The process of ignoring new conditions or changes in the environment.

• The process of adapting to old conditions or changes in the environment.

• The process of adjusting to new conditions or changes in the environment.

How do organisms adapt to their environment?

• Through genetic engineering

• Through random mutations

• Through conscious decision-making

• Through natural selection and evolution

What are some examples of physical adaptations?

• Camouflage, sharp claws, wings, and webbed feet

• Echolocation, fur, and bioluminescence

• Photosynthesis, gills, and exoskeletons

• Hibernation, long necks, and venomous fangs

What are some examples of behavioral adaptations?

• Predation, photosynthesis, territorial behavior, symbiosis

• Migration, hibernation, camouflage, social behavior

• Mating rituals, photosynthesis, symbiosis, territorial behavior

• Mating rituals, predation, photosynthesis, territorial behavior

Explain the concept of survival of the fittest.

• Organisms that are the largest in size are more likely to survive and reproduce.

• Organisms that are the most intelligent are more likely to survive and reproduce.

• Organisms that are the fastest are more likely to survive and reproduce.

• Organisms that are best adapted to their environment are more likely to survive and reproduce.

How does natural selection lead to evolution?

• Natural selection leads to evolution through differential survival and reproduction.

• Natural selection leads to evolution through random mutations.

• Natural selection leads to evolution through Lamarckian inheritance.

• Natural selection leads to evolution through genetic drift.