Earh's Systems

Question 1

System

Answer 1

an assemblage or combination of things or parts forming a complex or unitary whole:
a mountain system; a railroad system.

Question 2

Feedback

Answer 2

the furnishing of data concerning the operation or output of a machine to an automatic control device or to the machine itself, so that subsequent or ongoing operations of the machine can be altered or corrected.

Question 3

Model

Answer 3

a standard or example for imitation or comparison

Question 4

Biosphere

Answer 4

the part of the earth’s crust, waters, and atmosphere that supports life.

Question 5

Ecosystem

Answer 5

Ecology. a system, or a group of interconnected elements, formed by the interaction of a community of organisms with their environment:
Aquatic ecosystems differ radically from their terrestrial counterparts.

Question 6

Biome

Answer 6

a complex biotic community characterized by distinctive plant and animal species and maintained under the climatic conditions of the region, especially such a community that has developed to climax.

Question 7

Organism

Answer 7

a form of life composed of mutually interdependent parts that maintain various vital processes.

Question 8

Population

Answer 8

the body of inhabitants of a place:
The population of the city opposes the addition of fluorides to the drinking water.

Question 9

Biotic Factor

Answer 9

a living thing, as an animal or plant, that influences or affects an ecosystem:
How do humans affect other biotic factors?
Weather is not a biotic factor because it is not alive.

Question 10

Abiotic Factor

Answer 10

a nonliving condition or thing, as climate or habitat, that influences or affects an ecosystem and the organisms in it:
Abiotic factors can determine which species of organisms will survive in a given environment.

Question 11

Community

Answer 11

a social group of any size whose members reside in a specific locality, share government, and often have a common cultural and historical heritage.

Question 12

Habitat

Answer 12

the natural environment of an organism; place that is natural for the life and growth of an organism:
a tropical habitat.

Question 13

Niche

Answer 13

an ornamental recess in a wall or the like, usually semicircular in plan and arched, as for a statue or other decorative object.

Question 14

Biodiversity

Answer 14

biological diversity among and within plant and animal species in an environment:
Coral reefs are not just havens for marine biodiversity, they also underpin the economies of many coastal communities.
Spiraling extinctions will continue diminishing biodiversity for hundreds of years.

Question 15

Keystone Species

Answer 15

A species whose presence and role within an ecosystem has a disproportionate effect on other organisms within the system.

Question 16

exponential growth

Answer 16

growth whose rate becomes ever more rapid in proportion to the growing total number or size.
“the exponential growth of the world’s population

Question 17

logistic growth

Answer 17

he number or quantity of people or things that can be conveyed or held by a vehicle or container.

Question 18

density-independent

Answer 18

density-independent factor, also called limiting factor, in ecology, any force that affects the size of a population of living things regardless of the density of the population (the number of individuals per unit area).

Question 19

carrying capacity

Answer 19

carrying capacity, the average population density or population size of a species below which its numbers tend to increase and above which its numbers tend to decrease because of shortages of resources.

Question 20

density-dependent

Answer 20

density-dependent factor, also called regulating factor, in ecology, any force that affects the size of a population of living things in response to the density

Question 21

population density

Answer 21

population ecology: Population density and growth: An organism’s life history is the sequence of events related to survival and reproduction that occur from birth through death. Populations from different parts of the geographic range that a species inhabits may exhibit

Question 22

emigration

Answer 22

emigration, the departure from a country for life or residence in another. See human

Question 23

disturbance

Answer 23

In soil seed bank: The role of disturbance

Question 24

Resilience

Question 25

density-dependent

Answer 25

Density-dependent factors are the limiting factors of an ecosystem that regulate population growth in a density-dependent manner.

Question 26

emigration

Answer 26

the act of leaving one’s own country to settle permanently in another; moving abroad.
“mass emigration from Ireland to the United States”