Evolution and Natural Selection

What is camouflage?

• Camouflage is a method used by animals to attract mates.

• Camouflage is an adaptation that allows an organism to blend in with its environment to avoid detection by predators.

• Camouflage is a technique for hunting prey in the wild.

• Camouflage is a type of clothing worn by soldiers.

What is the fossil record?

• The fossil record is the history of life on Earth as documented by fossils, showing the progression of species over time.

• The fossil record is a collection of ancient artifacts used to study human history.

• The fossil record consists of all the rocks found on Earth that contain minerals.

• The fossil record is a timeline of geological events without any biological context.

What is genetic variation?

• Differences in DNA among individuals within a population, essential for natural selection.

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

• The study of heredity and the variation of inherited characteristics.

• The total number of genes in a population at a given time.

What is the significance of pectoral fins in walking catfish?

• They help in swimming faster in water.

• They allow walking catfish to move on land, which is crucial for survival during drought conditions.

• They are used for communication with other fish.

• They assist in catching prey more effectively.

What is evolution?

• Evolution is the process by which different kinds of living organisms develop and change over time through genetic variation and natural selection.

• Evolution is the study of how organisms interact with their environment.

• Evolution is the process of creating new species through artificial selection.

• Evolution is the gradual process of aging in living organisms.

How do environmental changes affect evolution?

• They have no effect on evolution.

• They can create new challenges that drive natural selection, leading to evolutionary changes in populations.

• They only affect the physical characteristics of organisms.

• They cause species to become extinct without any evolutionary changes.

What is bilateral symmetry?

• A body plan where the left and right sides are mirror images of each other.

• A body plan that is symmetrical around a central point.

• A body plan that has no symmetry at all.

• A body plan that is symmetrical in multiple planes.

What is natural selection?

• Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

• Natural selection is the method by which humans breed plants and animals for specific traits.

• Natural selection is the phenomenon where all organisms have an equal chance of survival regardless of their traits.

• Natural selection is the process of random genetic mutations that occur in a population over time.

What are vestigial structures?

• Body parts that have lost their original function through evolution, such as the human appendix.

• Essential organs that are crucial for survival.

• Structures that are fully functional and necessary for an organism's life.

• Parts of the body that are used for reproduction.

What are adaptations?

• Inherited traits that give an organism an advantage in its particular environment.

• Random changes in an organism's DNA.

• Behaviors that organisms learn from their parents.

• Physical features that are not related to survival.