Unit 4 Evolution and Classification

What is the term for a feature that allows an organism to survive better in its environment?

• variation

• adaptation

• homologous structures

• vestigial structures

All the individuals of a species that live in a particular area are called a

• varition

• fossil

• population

• group

The remnant of an organ that had a function in an early ancestor is known as a(n)

• vestigial structure

• analogous structure

• homologous structure

• fossil structure

The tortoise from Abingdon Island, shown in the image, would likely be better adapted than the Albermarle Island tortoise to which of the following environments?

• moss, grass

• no plants

• taller plant, bushes

• only tall tress

What is the process in which humans breed organisms for certain traits?

• natural selection

• inheritance of acquired characteristics

• artificial selection

• descent without modification

Individuals that are well adapted to their environment will survive and produce

• fewer mutations

• more offspring

• stronger genes

• better traits

Natural selection results in change overtime by acting on traits that are

• heritable

• new

• mutated

• better

In natural selection, the selective agent is the

• humans

• mutations

• breeders

• environment

A bird that can easily outcompete other birds for food and that can produce many eggs has a high

• life expectancy

• mutation rate

• fitness

• adaptability

Which of the following describes natural selection?

• it acts on genetic material directly

• it acts on existing physical traits

• it forms new traits

• it forms new genetic material