distribution of organisms

Question 1

abiotic and biotic factor

Answer 1

temperature and predation

Question 2

what could you do to improve the reliability of using quadrat to estimate the numbers of buttercups in a field

Answer 2

thrown the quadrat 10 times instead of 3

Question 3

name an abiotic factor other than temperature , which they could have measured in the woodland and describe the method of measuring the factor

Answer 3

PH

stick the probe of the PH meter in the soil

Question 4

describe an error the students might have made which would explain why there were no invertebrates in the pitfall traps

Answer 4

the traps not camouflaged

Question 5

interspecific competition

Answer 5

individuals of different species requiring similar resources

Question 6

what can indicator species provide information about

Answer 6

numbers of organisms in a lake

Question 7

give an example of a biotic factor affecting a population

Answer 7

shade from buildings causing a decrease in growth of grass

Question 8

what is predation

Answer 8

it is a biotic factor that causes a decrease in prey numbers

Question 9

abundance meaning

Answer 9

a very large quantity of something