Key Terms

Question 1

Habitat

Answer 1

The Place where an organism lives, eg rocky shore or a field

Question 2

Population

Answer 2

All the organisms of one speacies in a habitat.

Question 3

Community

Answer 3

Populations of different species in a habitat make up a community

Question 4

Ecosystem

Answer 4

All the organisms living in a particular area and all the non-living condition eg: the a lake and the fish within

Question 5

Abiotic conditions

Answer 5

The non-living features of an ecosystem,eg: temperature and availability of water

Question 6

Biotic conditions

Answer 6

The living features of the ecosystem, eg: the presence of predators or food

Question 7

Niche

Answer 7

The role of a species within its habitat, eg what it eats where and when

Question 8

Adaptation

Answer 8

A feature that members of the species have that increase its chances of survival and reproduction: think of The finches on the Galápagos Islands (Darwin’s finches)

Question 9

Growth

Answer 9

The net increase in size or mass of an organism

Question 10

Metapopulation

Answer 10

A group of populations that are separated by space but consist of the same spices. These spatially separated populations interact as individual members move from one population to another

Question 11

Size

Answer 11

The number of individual organisms in a population. Usually shown as N

Question 12

Form

Answer 12

The visible shape or configuration of an organism or a population

Question 13

Dispersion

Answer 13

When individuals or seeds move from one site to a breeding or growing site. This may be done actively or passively.

Question 14

Demes

Answer 14

A local population of polytypic species that actively interbreed with one another and share a distinct gene pool. When isolated for a long time they can become distinct subspecies.

Question 15

Mortality rate

Answer 15

The number of deaths in a given area or period

Question 16

Genetic variability

Answer 16

Variations of genomes between members of species or variations between groups of species in different parts of the world .

Question 17

Fluctuations

Answer 17

Changes in population

Question 18

Natality

Answer 18

The scientistic name for birth rate

Question 19

Fecundity

Answer 19

Is the reproductive rate of an organism or population

Question 20

Immigration

Answer 20

The movement of individual into a specific area

Question 21

Resources

Answer 21

Substance or object in the environment required by by an organism for normal growth maintenance and reproduction

Question 22

Continuity line

Answer 22

Unbroken level of something, normally population, over time

Question 23

Emigration

Answer 23

The movement of individuals out of a specific area.

Question 24

Carrying capacity

Answer 24

The maximum population size of a species that the habitat can sustain.