Chapter 7

Question 1

a slight difference in an inherited trait among individual members of a species

Answer 1

variation

Question 2

an inherited trait that increases an organism’s chance of surviving and reproducing in a particular environment.

Answer 2

adaptation

Question 3

the process by which organisms with variations that help them survive in their environment live longer compete better and reproduce those that do not have the variation.

Answer 3

natural selection

Question 4

the selection and breeding of an organism’s desired traits.

Answer 4

selective breeding

Question 5

an adaptation that enables a species to blend into their environment.

Answer 5

camouflage

Question 6

an adaptation in which one species looks like another species

Answer 6

mimicry

Question 7

a distinguishing characteristic of an organnism.

Answer 7

trait

Question 8

a section of DNA on a chromosome that has genetic information for one trait.

Answer 8

gene

Question 9

an organism’s complete set of genes.

Answer 9

genotype

Question 10

how a trait appears or is expressed.

Answer 10

phenotype

Question 11

A permanent change in the sequence of DNA or nucleotides in a gene or chromosome.

Answer 11

mutation

Question 12

the passing of traits from generation to generation.

Answer 12

inheritance