Fall 2021 Biology Exam Study Guide part 1

Which one is NOT a goal of science?

• investigate and understand the natural world.

• explain events in the natural world

• use explanations to make useful predictions

• to explain you experience in life

True or False -- a hypothesis is only useful if it can be tested.

• true

• false

What is logical interpretation based on prior knowledge and experience within the scientific community?

• inference

• theory

• law

• bias

Why would a scientist want to isolate a variable she is trying to test?

• so they can determine if it's the variable that causes the changes

• so they can test a thousand variables at a time

• so they can manipulate the data to make it look like they want

• so they can get paid

Why is it important to reproduce the results of an experiment?

• to make sure there wasn't a mistake that's causing the results

• to allow other scientists to make money off of your experiment

• to allow other scientists to bask in teh glory of your experiment

• to make sure your experiment didn't break any laws

True or False: An experiment must be reproducable to be accepted by the scientific community.

• True

• False

Define theory (scientific theory)

• process of gathering info in an orderly way

• suggested exlanation to a problem or question that can be tested

• a well-tested explanation that unifies a broad range of observations

• logical interpretations based on prior knowledge

What is a testable possible explanation of an observation?

• hypothesis

• theory

• control

• variable

Can a theory be changed? When?

• Yes, when new evidence is presented

• No, it can never be changed.

• Yes, when the person who has the theory dies.

• No, a theory is a law

What is an example of quantitative data?

• a plant has 5 offshoots

• a plant turned yellow

• a plant is growing tall

• a plant is growing around the tree