frogs

Question 1

adaption

Answer 1

a characteristic that improves an individual ability to survive and reproduce in a particular environment

Question 2

species

Answer 2

a group of organisms that are closely related and can mate to produce fertile offspring

Question 3

evolution

Answer 3

the process in which inherited characteristic within a population change over generations such that new species sometimes arise

Question 4

fossil

Answer 4

the remains or physical evidence of an organism preserved by geological process

Question 5

fossil record

Answer 5

a historical sequence of life indicated by fossils found in layers of the earth crust

Question 6

trait

Answer 6

a genetically determined characteristics

Question 7

selective breeding

Answer 7

the human practice of breeding animals or plants that have certain desired characteristics

Question 8

natural selction

Answer 8

the process by which individuals that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals do a theory to explain the mechanism of evolution

Question 9

speciation

Answer 9

the formation of new species as a result of evolution

Question 10

plate tectonics

Answer 10

the theory that explains how large peices of the earth outermost layer called tectonic plates move and change shape

Question 11

primate

Answer 11

a type of mammal characterized by opposable thumbs and binocular vision

Question 12

hominid

Answer 12

a type of primate characterized by bipedalism relatively long lower limbs and lack of a tail

Question 13

homo sapjens

Answer 13

the species of hominds that includes modern humans and their closests ancestors and that first appeared about 100,000 to 160,000 years ago

Question 14

generation time

Answer 14

is the average interval between the birth of an individual and the birth of its offspring. To determine the mean generation time of a population, the age of the individuals (x) is multiplied by the proportion of females surviving to…

Question 15

Relative Dating

Answer 15

is the science of determining the relative order of past events (i.e., the age of an object in comparison to another), without necessarily determining their absolute age (i.e. estimated age).

Question 16

Absolute Dating

Answer 16

is the process of determining an age on a specified chronology in archaeology and geology. Some scientists prefer the terms chronometric or calendar dating, as use of the word “absolute” implies an unwarranted certainty of accuracy.

Question 17

Geologic Time Scale

Answer 17

The geologic time scale (GTS) is a system of chronological dating that classifies geological strata (stratigraphy) in time. It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events in geologic history.

Question 18

Extinct

Answer 18

(of a species, family, or other group of animals or plants) having no living members; no longer in existence.