Unit 1 Biology Review

What is homeostasis?

• Organisms having a place for everything and everything in its place

• Group of organisms that can breed with each other and produce fertile offspring

• Responding to their environment based off of stimuli

• The regulation of internal conditions despite a changing environment

According to the pie chart, how much of a house's water usage is for showers?

• 26.7%

• 13.7%

• 21.7%

• 16.8%

What type of graph would you make to show how many of your classmates were born in each month of the year?

• line

• bar

• circle

• scatter plot

What is this graph missing?

• Axes
• Title
• Categories
• None of these

A testable prediction about a scientific investigation is a(n)

• Question
• Observation
• Hypothesis
• Experiment

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

• independent variable

• dependent variable

• control variable

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• True
• How fast you get to school
• Riding a bike or walking
• False

The independent variable is

• The variable that you change in an investigation

• The variable that you measure in an investigation

• A variable that you keep the same in an investigation

An explanation based on many repeated observations during experiments.

• conclusion

• scientific law

• theory

• hypothesis

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the independent variable?

• Dropping the same way

• Wing Length

• Amount of time it takes the helicopter to hit the floor

• Dropping from the same height