Evolution, Biodiversity, and Population Ecology

Question 1

a classification of organism who members can interbreed and produce fertile offspring

Answer 1

Species

Question 2

a group of individuals within a species that live in the same geographic area

Answer 2

Population

Question 3

the change of populations over multiple generations is called…

Answer 3

Evolution

Question 4

a process that favors certain inherited characteristics over others, causing them to be passed on more frequently

Answer 4

Natural Selection

Question 5

what three observations is the idea of natural selection based off of?

Answer 5

1. organisms face a constant struggle to survive and reproduce
2. organism tend to produce more offspring than can survive to maturity
3. individuals of a species vary in their attributes

Question 6

genes that lead to better reproductive success that eventually evolve through the entire population

Answer 6

Adaptation

Question 7

accidental changed In DNA

Answer 7

mutations

Question 8

_________ involves unrelated species living in similar environments may independently acquire similar traits

Answer 8

Convergent Evolution

Question 9

humans have conducted selection under our own direction

Answer 9

artificial selection

Question 10

_____ occurs when populations become physically spectated over a geographic distance

Answer 10

Allopatric speciation

Question 11

the variety of life across all levels

Answer 11

Biodiversity

Question 12

the process by which new species are generated

Answer 12

speciation

Question 13

an imprint ins tone of a dead organism

Answer 13

Fossil

Question 14

the body of fossils worldwide is called _____

Answer 14

fossil record

Question 15

the vast majority of species that once lived have disappeared due to _____

Answer 15

extinction

Question 16

how does Extinction occur?

Answer 16

when the environment changes more rapidly. than the species can adapt

Question 17

the earth has gone through how many mass extinctions?

Answer 17

the earth has gone through 5 mass extinctions

Question 18

the study of interactions among organisms and with their environments

Answer 18

Ecology

Question 19

a single living thing

Answer 19

organism

Question 20

includes all of the populations of species that live and interact within an area

Answer 20

community

Question 21

includes communities and all of the abiotic, nonliving, parts of the environment

Answer 21

Ecosystems

Question 22

the sum total of all living things and habitats on the earth

Answer 22

Biosphere

Question 23

the environment in which organisms live in

Answer 23

Habitat

Question 24

an organisms role in in is community

Answer 24

Niche

Question 25

species with narrow niches

Answer 25

specialists

Question 26

species that can utilize a wider variety of resources

Answer 26

generalists

Question 27

large natural areas subdivided into small er areas

Answer 27

Habitat fragmentation