ecology

Question 1

what is diversity

Answer 1

diversity is the # different species in an ecosystem

Question 2

why is diversity a good thing

Answer 2

more diversity=heathlier ecosystem because
~more types of organisms=more likely that one will survive a disaster

Question 3

what are biotic factors

Answer 3

all living components of a ecosystem

Question 4

what are abiotic factors

Answer 4

all non living components of an ecosystem

Question 5

what is a population

Answer 5

group of same species in the same area

Question 6

what is a species

Answer 6

all organisms that can breed and produce fertile offspring

Question 7

what is a community

Answer 7

a community is all of the populatiosn in one ecostysten

Question 8

what is an ecosystem

Answer 8

community plus the nonliving things

Question 9

biome

Answer 9

group of similar ecosystems

Question 10

biosphere

Answer 10

all parts of eearth

Question 11

what are the 3 types of relationships

Answer 11

preditation, competition, symbiotic relationships

Question 12

what is preditation

Answer 12

organisms kills and eats the other

Question 13

what is compettion

Answer 13

2 organisms need the same resources

Question 14

3 types of symbiotic relationship and definition of symbitoc relationship

Answer 14

paratism,mutualism,commensilism, and a symbiotic relationship is when two organisms live close to each other

Question 15

defihne paratism

Answer 15

when one organism benefits from and harms another. (parasite)

Question 16

define mutualism

Answer 16

2 organisms benefit from each other

Question 17

define commensilism

Answer 17

one organism benefits and nothing happens to the other

Question 18

what is a trophic level

Answer 18

group of organisms whose nrg source is the same # of steps away from the sun

Question 19

all trpphic levels

Answer 19

1.producers
2.primary consumers
3.secondary consumers
4.tertiaty consumer
5.decomposers

Question 20

what are autotrophs

Answer 20

organisms that make their own food

Question 21

what are heterotrophs

Answer 21

organisms that need to obtain food

Question 22

what three things do ecological pyramids show the distribution of

Answer 22

energy,biomass, and numbers of organisms

Question 23

why is energy lost between trophic levels

Answer 23

use of nrg is converted to heat which is lost to the atmosphere

Question 24

what part of your energy is passed on to what eats you ?

Answer 24

the stuff used to mkae more you(fat, growth,etc)

Question 25

what precent of nrg in each level is passed up in an energy pyaramid

Answer 25

10%, so a pyramid is created

Question 26

what precent of biomasss is passed up each trohpic level and whats the shape

Answer 26

around 10%, still a pyramid

Question 27

what shape is a number oyramid and why

Answer 27

it varies becasue in each ecosystem there are a different amount of organisms in each level

Question 28

what is primary productivity

Answer 28

the rate what which an ecosystems produceerws create biomass