Ecosystems and biodiversity
19.3What the syllabus asks of you
- Describe a population as a group of organisms of one species, living in the same area, at the same time
- Describe a community as all of the populations of different species in an ecosystem
- Describe an ecosystem as a unit containing the community of organisms and their environment, interacting together
- Describe biodiversity as the number of different species that live in an area
- Identify and state the factors affecting the rate of population growth for a population of an organism, limited to: food supply, competition, predation and disease
- Understand that the growth of the human population is increasing the demand for global resources
Read the notes first
Chapter 19: Ecosystems and biodiversity
Drill this topic
All 4 questions on Ecosystems and biodiversity, untimed — answer on paper, then mark yourself against the mark scheme.
Make a worksheet
Choose the years and how many questions, then print it with the answers on separate pages.
4 questions
These are structured questions, answered in working rather than by picking an option, so they are not listed here one by one. The drill above puts each in front of you with its mark scheme to check against.