Unit 5 and 6 Biology Vocab

Question 1

the number of organisms within a species in a specific location

Answer 1

Population Density

Question 2

the proportionate numbers of people in different age categories in a given population for a defined time

Answer 2

Age Structure

Question 3

an animal that establishes a home in a habitat that is ideal for them

Answer 3

Immigration

Question 4

an animal that leaves its home to find a more suitable environment

Answer 4

Emigration

Question 5

growth whose rate becomes even more rapid in proportion to the growing total number or size

Answer 5

Exponential Growth

Question 6

population expansion decreases as resources become scarce

Answer 6

Logistic Growth

Question 7

the number of people, organisms, or crops that a region can support

Answer 7

Carrying Capacity

Question 8

anything that constrains a population’s size and slows or stops it from growing

Answer 8

Limiting Factor

Question 9

factors that affect the growth rate of a population differently depending on how dense the population already is

Answer 9

Density-Dependent Limiting Factor

Question 10

any force that effect the size of a population of living things regardless of the density of the population

Answer 10

Density-Independent Limiting Factor

Question 11

the cultivation or growth of a single crop or organism especially on agricultural or forest land

Answer 11

Monoculture

Question 12

an energy source that cannot be depleted and are able to supply a continuous source of clean energy

Answer 12

Renewable Resource

Question 13

a substance that is used up more quickly than it can replace itself

Answer 13

Nonrenewable Resource

Question 14

development that meets the needs of the present without compromising the ability of future generations to meet their own needs

Answer 14

Sustainable Development

Question 15

the process by which vegetation in dry lands decreases and eventually disappears

Answer 15

Desertification

Question 16

the action of clearing a wide area of trees

Answer 16

Deforestation

Question 17

a substance that pollutes something, especially water or the atmosphere

Answer 17

Pollutant

Question 18

the process of accumulation of certain chemicals in living organisms to a concentration higher than that occurring in the inorganic, non-living environment

Answer 18

Biological Magnification

Question 19

fog or haze combined with smoke and other atmospheric pollutants

Answer 19

Smog

Question 20

rainfall polluted by the atmosphere that causes environmental harm, typically to forest and lakes

Answer 20

Acid Rain

Question 21

the variety of life in the world or in a particular habitat or ecosystem

Answer 21

Biodiversity

Question 22

the study of different ecosystems in a certain location

Answer 22

Ecosystem Diversity

Question 23

the number of different species in a particular area and their relative abundance

Answer 23

Species Diversity

Question 24

the range of different inherited traits within a species

Answer 24

Genetic Diversity

Question 25

a process during which a large expanse of habitat is transformed into a number of smaller patches

Answer 25

Habitat Fragmentation

Question 26

regions that contain a high level of species diversity

Answer 26

Ecological Hot Spot

Question 27

the impact of a person or community on the environment

Answer 27

Ecological Footprint

Question 28

a layer in the earth’s atmosphere that absorbs most of the ultraviolet radiation reaching the earth from the sun

Answer 28

Ozone Layer

Question 29

the study of aquatic animals or the cultivation of aquatic plants for food

Answer 29

Aquaculture

Question 30

the long-term warming of the planet’s overall temperature

Answer 30

Global Warming