PBII Chapter 22 Evolution by Natural Selection

Question 1

A record which consists of all the fossils that have been found on Earth and decribed in the scientific literature

Accepted Answer

fossil record

Question 2

Species living today

Accepted Answer

extant species

Question 3

Form from sand or mud or other materials deposited in layers at locations such as beaches or river mouths

Accepted Answer

sedimentary rocks

Question 4

A heritable trait that increases the fitness of an individual in a particular environment

Accepted Answer

adaptation

Question 5

Species that no longer exist

Accepted Answer

extinct species

Question 6

A trait in a fossil species that is intermediate between those of ancestral (older) and derived (younger) species

Accepted Answer

transitional feature

Question 7

Any trace of an organism that lived in the past is called...

Accepted Answer

fossil

Question 8

When selection on one trait causes a change in another trait

Accepted Answer

genetic correlation

Question 9

The ability of an individual to produce surviving, fertile offspring

Accepted Answer

fitness

Question 10

Levels Homology can be studied at are

Accepted Answer

All of the above

Question 11

A sequence of named intervals called eons, eras, and periods that represented the major events in Earth's history

Accepted Answer

geolologic time scale

Question 12

a branching diagram that depicts the ancestor-descendent relationships among species or other taxa

Accepted Answer

phylogenetic tree

Question 13

A similarity that exists in species due to common ancestry

Accepted Answer

homology

Question 14

A reduced or incompletely developed structure that has no function, or reduced function

Accepted Answer

vestigial trait

Questions 14