How does discolouration and the presence of pests help in detecting plant disease?
How does discolouration and the presence of pests help in detecting plant disease?

How does discolouration and the presence of pests help in detecting plant disease?
What types of growth abnormalities might indicate the presence of a disease in plants?
How can stunted growth, spots on leaves, and decay signal plant disease?
What are some common signs that indicate a plant may be diseased?
Advantages and disadvantages of sexual and asexual reproduction
(For higher-tier students) How do the mechanisms of vasodilation, vasoconstriction, sweating, and shivering work to raise or lower body temperature in various situations?
Why does shivering occur when the body is cold, and how does it affect temperature?
What is vasoconstriction, and how does it help to raise body temperature?
What mechanisms are triggered when body temperature is too low?
How does sweat production affect body temperature?