The Organism in the Environment

Question 1

POPULATION

Answer 1

ALL the organisms of one species in a habitat

Question 2

HABITAT

Answer 2

the place where an organism lives

Question 3

COMMUNITY

Answer 3

All the DIFFERENT SPECIES in a HABITAT

Question 4

ECOSYSTEM

Answer 4

all the organisms living in a particular area and all the non-living (abiotic) conditions

Question 5

BIODIVERSITY

Answer 5

the VARIETY of different species of organisms within an ecosystem

Question 6

how do ABIOTIC factors affect communities?

Answer 6

1. ENVIRONMENTAL CONDITIONS: affect the abundance and distribution of organisms (temperature, light intensity, moisture level and soil pH)
2. TOXIC CHEMICALS: eg. chemical pesticides or fertilisers. can lead to eutrophication and bioaccumulation, and death of organisms.

Question 7

how do BIOTIC factors affect communities?

Answer 7

1. availability of food
2. number of predators
3. competition over the same resources