Vocab Ch. 1

Question 1

biology

Answer 1

study of organisms or living things

Question 2

zoology

Answer 2

the study of animals

Question 3

evolution

Answer 3

scientific theory that explains the process of genetic change in populations over time

Question 4

natural selection

Answer 4

differential reproduction and survival of individuals in population due to environmental influences on that population.

Question 5

biological species

Answer 5

common descent/ancestry

reproduction isolation

Question 6

speciation

Answer 6

genetic changes with population over time are sufficiently extreme so that 2 population form–different species.

Question 7

homology

Answer 7

anatomic structures within different organisms which originated from a structure of common ancestral organisms.

Question 8

adaptive radiation

Answer 8

production of many ecologically diverse species from a common ancestral species

Question 9

homologous structures

Answer 9

limb bones in humans—lizards, bats, cats, birds, horses, insects, dogs.