B. Subgroups
<span>When constructing a dichotomous key, the first step is to look at the group of objects or organisms and separate them into two groups based on a single distinguishing characteristic. Then continue to separate each of the groups until each object has its own separate set of characteristics.</span>
Answer:
Situation
Explanation:
Heat is transferred
Temperature is how "hot" or "cold" an object is
Answer:
People drink water that has been contaminated by animal feces
Explanation:
