QUESTIONS AND CORRECT ANSWERS
Evolution - Correct answers✔The gradual change in a species over time
Adaptation - Correct answers✔inherited characteristic that increases an organism's chance of
survival
natural selection - Correct answers✔A process in which individuals that have certain inherited
traits tend to survive and reproduce at higher rates than other individuals because of those traits.
descent with modification - Correct answers✔principle that each living species has descended,
with changes, from other species over time
Mutation - Correct answers✔change in a DNA sequence that affects genetic information
Variation - Correct answers✔any difference in traits between individual organisms
selective advantage - Correct answers✔The characteristic of an organism that enables it to
survive and reproduce better than other organisms in a population in a given environment
Species - Correct answers✔a group of living organisms consisting of similar individuals capable
of exchanging genes or interbreeding.
Speciation - Correct answers✔the evolution of new species form a common ancestor
, common ancestor - Correct answers✔the most recent ancestral form or species from which two
different species evolved
Fossils - Correct answers✔Preserved remains of once-living organisms
Embryology - Correct answers✔study of embryos and their development
comparative anatomy - Correct answers✔The comparison of body structures and how they vary
among species
molecular biology - Correct answers✔the study of how DNA directs protein synthesis
heritibility - Correct answers✔ability of a trait to be passed from one generation to the next
gene pool - Correct answers✔Combined genetic information of all the members of a particular
population
allele frequency - Correct answers✔how often a form of a gene appears in a gene pool
homologous chromosomes - Correct answers✔Pair of chromosomes that are the same size, same
appearance and same genes.
sister chromatids - Correct answers✔joined copies of the original chromosome