Populations

Question 1

Density Independent Factor

Answer 1

Any factor limiting the size of a population whose effect is not dependent on the number of individuals in the population.

Question 2

Population

Answer 2

all the inhabitants of a particular town, area, or country.

Question 3

Inbreeding

Answer 3

the mating of closely related individuals, as cousins, sire-daughter, brother-sister, or self-fertilized plants, which tends to increase the number of individuals that are homozygous for a trait and therefore increases the appearance of recessive traits.

Question 4

Dispersion

Answer 4

A specific type of organism can establish one of three possible patterns of dispersion in a given area: a random pattern; an aggregated pattern, in which organisms gather in clumps; or a uniform pattern, with a roughly equal spacing of individuals.Dec 8, 2014

Question 5

Immigration

Answer 5

The influx of new individuals into a new area

Question 6

Emigration

Answer 6

especially migration from your native country in order to settle in another

Question 7

Birth Rate

Answer 7

noun

the number of live births per thousand of population per year.

Question 8

Growth Rate

Answer 8

The rate, or speed, at which the number of organisms in a population increases.

Question 9

Life Expectancy

Answer 9

noun

the average period that a person may expect to live.

Question 10

Agricultural Revolution

Answer 10

a significant change in agriculture that occurs when there are discoveries, inventions, or new technologies that change production

Examples

Question 11

Hunter Gatherer Lifestyle

Answer 11

A hunter-gatherer or early human society is one in which most or all food is obtained from wild plants and animals, in contrast to agricultural societies, which rely mainly on domesticated species.

Question 12

Death Rate

Answer 12

noun
the ratio of deaths to the population of a particular area during a particular period of time, usually calculated as the number of deaths per one thousand people per year.

Question 13

Population Density

Answer 13

Definition of Population Density. In biology, populations are groups of individuals belonging to the same species that live in the same region at the same time. Population density is a measure of the number of organisms that make up a population in a defined area.

Question 14

Density Dependent Factor

Answer 14

Any factor limiting the size of a population whose effect is dependent on the number of individuals in the population.

Question 15

Stability

Answer 15

stability

The quality of maintaining a constant character in the presence of forces which threaten to disturb it, resistance to change.

Question 16

Secondary Succession

Answer 16

Secondary succession is the series of community changes which take place on a previously colonized, but disturbed or damaged habitat.

Question 17

Climax Community

Answer 17

n. Ecology
An ecological community in the final stage of succession, in which the species composition remains relatively stable until a disturbance such as fire occurs.

Question 18

Pioneer Species

Answer 18

Pioneer species are hardy species which are the first to colonize previously disrupted or damaged ecosystems, beginning a chain of ecological succession that ultimately leads to a more biodiverse steady-state ecosystem.

Question 19

Disturbance

Answer 19

the interruption of a settled and peaceful condition.

Question 20

Primary Succession

Answer 20

Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.

Question 21

Ecological Succession

Answer 21

Ecological succession is the observed process of change in the species structure of an ecological community over time.

Question 22

Biological Succession

Answer 22

The term “biological succession” refers to the progression an ecosystem follows as it changes over time.