Question

1. which statement best describes the term theory as used when describing a scientific theory? 1 a theory is never revised even when new scientific evidence is presented. 2 a theory is an assumption made by scientists and implies a lack of certainty. 3 a theory is a scientific explanation that is supported by a variety of experimental data. 4 a theory is a hypothesis that has been supported by one experiment only. 16. the analysis of data gathered during a particular experiment is necessary to 1 formulate a hypothesis for that experiment 2 develop a research plan for that experiment 3 design a control group for that experiment 4 draw a valid conclusion for that experiment 17. when starch is digested, it is broken down into smaller units of sugar. the graph below represents data obtained from an experiment on starch digestion. which statement best describes point a and point b on the graph?

Explanation:

• For question 15: A scientific theory is a well - supported scientific explanation. It is based on a variety of experimental data and can be revised with new evidence. Option 3 correctly describes this.
• For question 16: Analyzing data from an experiment is crucial to draw a valid conclusion. Hypotheses are formulated before the experiment, research plans and control groups are designed before data collection.

Answer:

1. 3. A theory is a scientific explanation that is supported by a variety of experimental data.
2. 4. draw a valid conclusion for that experiment