Evolutionary Biology Concepts

Which of the following provides evidence of common ancestry among groups?

• Fossil record

• Biogeography

• Homologies

• All of the above

What does natural selection produce change in?

• Species

• Populations

• Ecosystems

• Individuals

What term describes the phenomenon where species show little to no evolutionary change over long periods?

• Abrupt appearance

• Natural selection

• Stasis

• Gradualism

Genome maps provide the DNA sequences of chromosomes. Some scientists have compared the genome maps of a hedgehog and a sloth. What do these genome maps allow the scientists to determine?

• The color patterns of the offspring of each species

• How much the size ranges of the two species differ

• The methods of proteins synthesis that each species uses

• How closely related the two species are to each other

Bactrian camels, dromedaries, llamas, and alpacas are all members of the same taxonomic family, Camelidae. Members of this family all have two toes, no hooves, true canine teeth, and a split upper lip. The family Camelidae originated in North America. The physical features of animals in this family and the family's geographical origin provide evidence that all these animals -

• live in the same type of ecosystem

• have slowly evolved to become herbivores

• have a common ancestor

• exchanged DNA at some point in the past

What did Charles darwin think about natural selection?

• organisms change their traits to the trait that will help them
• breeding 2 similar animals get the best traits
• breeding 2 animals with different traits give the best results
• organisms with better traits for their environment will survive and reproduce

Which of the following is a factor in natural selection?

• Individuals of species compete with one another to survive.
• All species are genetically diverse.
• Individuals better able to adapt to changes leave more offspring.
• All are correct 

One example of ___ is how moths that couldn't blend in with their environments as well as others died out over time.

• mutation

• natural selection

• extinction

What is the fossil record?

• A database of all extinct species.

• The study of the number and placement of fossils within certain types and areas of rock.

• A genetic map of all living organisms.

• A record of all known fossils and their locations.

What is biogeography?

• The study of animal behavior in natural habitats

• The study of where species are found

• The study of plant species and their environments

• The study of geological formations