Ecology (5.1 & 5.2)

Question 1

1)Give the definition of the following terms:
a) Ecosystem
b) Community
c) Population
d) Habitat

Answer 1

ECOSYSTEM = community of interacting organisms and their physical environment
COMMUNITY = multiple populations living in an area
Population = total number of organisms in one species in an area
Habitats = An area that an organism lives including abiotic and biotic factors

Question 2

Give the definition of biotic and abiotic factors

Answer 2

BIOTIC = living factors in an environment
ABIOTIC = non living factors in an environment

Question 3

List the biotic factors that can affect the numbers and distribution of species in an ecosystem

Answer 3

Presentation, parasitism, grazing, food availablility and competition for resources

Question 4

List the abiotic factors that can affect the numbers and distribution of species in an ecosystem

Answer 4

Weather, soil pH, humidity, light availability, water availability, temperature