Unit 4

What is natural selection?

• The process by which organisms intentionally select their offspring's traits.

• The process by which organisms better adapted to their environment tend to survive and produce more offspring.

• The process by which organisms randomly produce offspring.

• The process by which organisms are NOT adapted to their environment tend to survive and produce more offspring.

What is adaptation?

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

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

• The process of staying the same despite new conditions or changes in the environment.

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

What is variation?

• A mathematical equation used in physics

• A type of musical instrument

• The process of creating clones

• Differences or changes that occur within a population or species over time.

Give an example of adaptation in animals.

• Camouflage

• Hibernation

• Migration

• Photosynthesis

How do fossils provide evidence for evolution?

• Fossils provide evidence for evolution by showing that all species have remained unchanged over time.

• Fossils provide evidence for evolution by showing that species have evolved in a linear and predictable manner.

• Fossils provide evidence for evolution by showing that species have appeared suddenly and fully formed.

• Fossils show the existence of extinct species and the gradual changes in species over time.

Selective Breeding allows humans to choose a species ____ by choosing which organisms reproduce.

• Traits

• Food

• Predators

____ is part of DNA code on a chromosome.

• genotype

• phenotype

• gene

• gender

Mutations cause changes in

• proteins

• nutrients

• elements

• compounds

Peppered Moths changing from light to dark and patterned and now surviving to reproduce is an example of

• genes

• mutations

• natural selection

• selective breeding

What is an example of variation to help animal survive?

• planting a certain kind of flower to attract butterflies

• Finches having a short flat beak where the environment has seeds for food

• black bears in a region that was always covered with snow

• choosing a dog to take home from an animal shelter