Biology As A Science

Science is an organized body of ________?

The study of living things began with a primitive man's concern about his health.

What are the steps of the scientific method in order?

In an old petri dish, [Blank] observed that there was no [Blank] surrounding a piece of mold.  He tried to explain this, with the hypothesis that "Penicillium secretes a chemical that kills [Blank] bacteria.  He experimented this by having two identical flasks, each filled with [Blank].  He added bacteria to [Blank] flask(s).  In the first flask, he added a piece of [Blank], then removed it.  Fleming left the second alone.  At the end of the experiment, Fleming found that the first flask had no [Blank] because it was clear, while the second was [Blank] and contained [Blank].  From this, he was able to conclude that a chemical called [Blank] kills Staph. bacteria.

A controlled experiment is an experiment where all factors are the [Blank] except the one being [Blank].

The factor being tested in an experiment is called the _______

A(n) _______ is a drug that kills bacteria

Primitive man used herbs for their nutritional value

Early Man learned about his body from primitive attempts at therapy