Ecology

Question 1

what is a species

Answer 1

a group of similar organisms that are able to mate with another to produce fertile offspring

Question 2

what is a community

Answer 2

the living part of a biome

Question 3

what is a biome

Answer 3

a community of plants and animals that have common characteristics for the environment they exist in.

Question 4

what is an ecosystem

Answer 4

all of the living organisms that share a region and interact with each other and their non-living

Question 5

what are the endangerment levels

Answer 5

extinct, extirpated, endangered and vulnerable

Question 6

what is extinct

Answer 6

no longer living

Question 7

what is extirpated

Answer 7

extinct in a specific area

Question 8

what is endangered

Answer 8

at risk for extinction

Question 9

what is vulnerable

Answer 9

likely to become endangered

Question 10

reasons for endangerments

Answer 10

habitat loss, genetic and reproductive isolation, urbanization

Question 11

what is biodiversity

Answer 11

different kinds of life/species. The more the better

Question 12

what are producers

Answer 12

organisms that make its own food using the sun

Question 13

what are consumers

Answer 13

an organisms that obtains its energy from consuming other organisms

Question 14

what are scavengers

Answer 14

an animals that feeds on dead organisms

Question 15

what is detrius

Answer 15

wast or debris of any kind

Question 16

what is biotic

Answer 16

living things, their remains, waste and feature

Question 17

what is abiotic

Answer 17

non living thing’s physical and chemical components (temperature, water, soil)

Question 18

what is an atmosphere

Answer 18

a layer of gas that protects the earth

Question 19

what is a lithosphere

Answer 19

the earths rocky outer shell

Question 20

what is a hydrosphere

Answer 20

all water on Earths surface or below earths surface in solid, liquid or gas.

Question 21

what is a biosphere

Answer 21

the thin layer of groundwater and lower atmosphere around the earth where life can exist

Question 22

what are the food chain levels (bottom to top)

Answer 22

producer, primary, secondary, tertiary and quaternary

Question 23

what is an introduced species

Answer 23

an organism that has been introduced into and lives in an ecosystem where it is not usually found

Question 24

what is an invasive species

Answer 24

an introduced species that has grown out of control with no natural predators

Question 25

what are exotic species

Answer 25

plants or animals that are growing in a. nonnative environment

Question 26

what is an niche

Answer 26

the specific role of an organism

Question 27

what does diurnal mean

Answer 27

an organism that feeds during the daytime

Question 28

what does nocturnal mean

Answer 28

an organism that feeds during the nighttime

Question 29

what does crepuscular mean

Answer 29

an organism that feeds at dusk/dawn

Question 30

what is mimicry

Answer 30

an organism manipulates the colouration warning system falsely

Question 31

what is mutualism

Answer 31

a mutual benefit

Question 32

what is parasitism

Answer 32

one species benefits, the "host" is harmed

Question 33

what is commensalism

Answer 33

one species benefits, the other is not affected

Question 34

what is a food chain

Answer 34

a sequence of organisms, each feeding on the next, showing how energy is transferred from one organism to another

Question 35

what is a food web

Answer 35

a representation of the feeding relationships within a community

Question 36

what is clear cutting

Answer 36

most or all trees in an area are uniformly cut down

Question 37

what is shelter wood cutting

Answer 37

multiple cuts but leads to the development of an even-aged forest

Question 38

what is selective cutting

Answer 38

cutting down of selected trees in a forest so that growth of other trees is not affected

Question 39

what is acid rain

Answer 39

atmospheric pollution that goes into the air, into the water cycle and causes environmental harm, typically to forests and lakes.

Question 40

what is an oil spill

Answer 40

when people are careless or an oil tanker leak oil into the ocean or water

Question 41

how does plastic end in the ocean

Answer 41

plastic from littering or garbage dumps get blow into the ocean where it effects wild life

Question 42

natural vs synthetic fertilizer

Answer 42

a natural one is organic (manure) a synthetic has chemicals in it that increase growth

Question 43

what is organic farming

Answer 43

uses ecologically based pest controls and biological fertilizers derived largely from animal and plant wastes

Question 44

how are non target species effected by pesticides

Answer 44

the chemicals accidentally effect species that weren't supposed to be effected by the pesticide

Question 45

what is bioamplification

Answer 45

increasing concentration of a substance, such as a toxic chemical, in the tissues of tolerant organisms at successively higher levels in a food chain.

Question 46

what is natality

Answer 46

birth rate

Question 47

what is mortality

Answer 47

death rate

Question 48

what is immigration

Answer 48

going to a place

Question 49

what is emigration

Answer 49

leaving a place