distribution of organisms

Question 1

abiotic factors are………. factors

Answer 1

physical factors

Question 2

abiotic factors include

Answer 2

light intensity, pH, moisture levels and temperature

Question 3

biotic factors are…………factors

Answer 3

biological factors

Question 4

biotic factors include

Answer 4

competition, disease, food availability, grazing and predation

Question 5

abiotic and biotic factors affect the

Answer 5

biodiversity and distribution of organisms in an ecosystem

Question 6

a sample can be taken to represent

Answer 6

a population of an organism in a habitat or ecosystem

Question 7

………. …………….. of samples must be taken to ensure they are …………. and ……………

Answer 7

large numbers of samples must be taken to ensure they are representative and reliable

Question 8

a ……………… line is a line across a habitat along which samples and measurements are taken

Answer 8

transect

Question 9

………….. are used to sample organisms that are …….. or partly ……. to a surface or that do not fly

Answer 9

quadrats are used to sample organisms that are fixed or partly fixed to a surface or that do not fly

Question 10

…………… …… can be used to sample invertebrate animals that move around on surfaces

Answer 10

pitfall traps

Question 11

sampling techniques such as ………. and ……… …….. are limited in what they can measure and create potential errors

Answer 11

quadrats and pitfall traps

Question 12

a paired statement key is

Answer 12

a set of contrasting questions to identify and name a living organism

Question 13

the presence, abundance or absence of ……… …….. can reveal info about the ………… and level of ………… present

Answer 13

the presence, abundance or absence of indicator species can reveal info about the environment and level of pollution present