4.1 NOTES by: Santora Faulkner
Species are groups of organisms that can potentially interbreed to produce fertile
Members of a species may be reproductively isolated in separate populations.
Species have either an autotrophic or heterotrophic m
6.2 Notes Biology
Arteries convey blood at high pressure from the ventricles to the tissues of the body.
Arteries have muscle cells and elastic fibres in their walls.
The muscle and elastic fibres assist in maintaining blood pressure betw
4.4 Notes: Climate Change
Carbon dioxide and water vapour are the most significant greenhouse gases.
Other gases including methane and nitrogen oxides have less impact.
The impact of a gas depends on its ability to absorb long-wa