Vocabulary

Question 1

Traits

Answer 1

Characteristics of an organism} appearance, metabolism, behavior, aptitude

Question 2

Alleles

Answer 2

Traits can be modified producing variations of the same gene

Question 3

Asexual reproduction

Answer 3

• one parent

- must rely upon mutation for variations

Question 4

Sexual reproduction

Answer 4

• two parents

- variety through recombination a of genes from different parents

Question 5

Gene pool

Answer 5

• all genes in a given population
• pool is constantly being mixed but at the same time is maintained
• would remain constant if every member of a population had the same chance of survival or same reproductive potential

Question 6

Selective pressure

Answer 6

Ant factor that exerts a force in determining which individual will survive and reproduce

Question 7

Differential reproduction

Answer 7

When some organisms are more successful reproducing more rapidly or in producing offspring

Question 8

Selective breeding

Answer 8

• domestic animals

- man selects the desired traits and breeds only the elected organism

Question 9

Natural selection

Answer 9

• nature chooses which traits are desirable

- those that survive to recruitment age produce the next generation

Question 10

Fittest

Answer 10

Leaves the largest number of offspring

Question 11

Survival value

Answer 11

• ability to stay alive to ones reproductive age

- better suited to their environment

Question 12

Sexual selection

Answer 12

Traits that are desirable to the opposite sex

Question 13

Family size

Answer 13

Nature will favor those traits that result in the production of larger more mature families

Question 14

Harem

Answer 14

One male multiple females

Question 15

Mutations

Answer 15

Radom sudden changes in the genetic makeup of an organism

An unreliable source of variation

Question 16

Beneficial

Answer 16

Gives organism an advantage

Question 17

Harmful

Answer 17

Puts organism at a disadvantage

Question 18

Lethal

Answer 18

Cause death

Question 19

Neutral

Answer 19

Provides no benefit or risk under present conditions

Question 20

Random genetic drift

Answer 20

Chance eliminations of certain individuals

Question 21

Gene migration

Answer 21

The introduction of new genes to an isolated or inbred group (provides variety)

Question 22

Speciation

Answer 22

The making of new species
Organism adapt to various abiotic and biotic conditions
Over time they become highly adapted or specialized due to pressures of competition and survival

Question 23

Evolution

Answer 23

To change over a period of time

Question 24

Adaptive radiation

Answer 24

Different species all having a common ancestor but adapting to different environments

Question 25

Convergent evolution

Answer 25

Different species having different ancestry yet adapting to similar environments

Question 26

Gradualism

Answer 26

Show changed over a long period of time

Question 27

Punctuated equilibrium

Answer 27

Short burst of rapid change followed by long periods of stability

Question 28

Magnitude

Answer 28

Measurement in increments of 10

Question 29

Resistance

Answer 29

The act to not adapt

Question 30

Cline

Answer 30

A continuous distribution of plants or animals over a large area where they gradually vary form one end of their range to the other

Question 31

Continental drift

Answer 31

Crustal plates floats on liquid in the center of earth

Question 32

Convection currents

Answer 32

produced by heat rising moving plates around

Question 33

Anthropocene

Answer 33

Age of man

Question 34

Genes

Answer 34

Units of information that controls traits