Explain why do preserved foods not spoil?
What is a burette?
Explain how much salt is in the human body?
What is the lowest temperature humans can survive?
Name an organ that belongs to more than one organ system?
Define triglyceride?
What is a florence flask?
Explain the difference between an acid and a base?
Define acute disease?
Explain what does an anther have on it?
Define concentration gradient?
What is nonliving reservoirs?
Explain how does the structure of a crab relate to its habitat?
Explain what is the optimum temperature for catalyses?
What are some examples physical changes?