Aqa biology a2 - Study guides, Class notes & Summaries

Pest An organism that competes with humans for food or space or is a danger to health. Pesticides Are poisonous chemicals that kills pests. 00:27 01:36 Features of an effective pesticide -Specific -Biodegradable -Cost-effective -Not accumulate Specific The pesticide is only toxic to on organism, which it is directed towards. Harmless to humans and any other organisms. Biodegradable The pesticide once applied will breakdown,into harmless substances. ...

Distribution of this document is illegal Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. A-level BIOLOGY Paper 3 Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill within the boxes at the top based on this page. • Answer all questions with...

AQA A2 BIOLOGY UNIT 4 CONTENTS

AQA A2 BIOLOGY UNIT 4 content

Organisms respond to changes in their internal and external environments AQA A2 Biology 4

Year 2/A2 AQA A-Level Psychology exam revision notes for the option Schizophrenia. This is on an A3 sized paper digital paper. This has been simplified to make it easier to pick out important information and revise key notes.

Cell structure - A-Level Biology notes

Energy and ecosystems - A-Level Biology notes

Photosynthesis - A-Level Biology notes

Respiration - A-Level Biology notes