Community

Question 1

biosphere

Answer 1

anywhere with life

Question 2

ecosystem

Answer 2

interactions between biotic and abiotic factors

Question 3

community

Answer 3

group of different species living in a habitat

Question 4

population

Answer 4

group of organisms of the same species living in a habitat

Question 5

why are communities important?

Answer 5

form units of ecosystems

Question 6

stable communities

Answer 6

all environmental factors are constant, populations remain same

Question 7

biotic

Answer 7

living factors

Question 8

abiotic

Answer 8

non-living factors

Question 9

factors affecting population

Answer 9

new species, food, new pathogens, outcompeting

Question 10

competition

Answer 10

when an ecosystem’s resources are limited

Question 11

4 things compete for

Answer 11

food, territory, mate, protection

Question 12

how can a competitor be successful?

Answer 12

adapted well to find food and mated better than others

Question 13

what do plants compete for?

Answer 13

light, space, water, mineral ions

Question 14

biome

Answer 14

an area classified according to which species live in that location

Question 15

investigation for plant competition

Answer 15

30 seedlings, overcrowd one tray, spread other, monitor water mass and plant height

Question 16

quadrats

Answer 16

way of sampling by marking off an exact area

Question 17

sampling

Answer 17

observing a small part of a population to make conclusions of whole population

Question 18

the more data gathered . . .

Answer 18

the more reproducible are the results

Question 19

transect line

Answer 19

placing quadrants along a line for percentage cover of different distances, investigated links between factors and abundance of organisms

Question 20

transect practical

Answer 20

beneath tree to light, 8m line, measure light intensity + temperature + soil surface + abundance at each metre, repeat and compare