Unit 1 Biology Review

1. All of the following pieces of equipment EXCEPT for _____________ could be useful for transferring a liquid from one container to another.

• beaker

• funnel

• petri dish

• graduated cylinder

Micah needs 25 mL of motor oil to test his combustion engine. Which tool would give him the most precise measurement?

• Beaker

• Flask

• Graduated cylinder

• Test tube

Can a measurement be both accurate and precise?

• Yes

• No

When leaving a movie theater, a person notices that the sidewalk is now wet. If the person assumes it rained during the movie, the person is making

• a hypothesis

• an inference

• an observation

• a prediction

When designing an experiment, scientists will test a relationship between a “cause” and an “effect.” The “effect,” also represented by what the scientist measures and records, is known as the

• dependent variable

• constant

• independent variable

• control group

Tags

NGSS.HS-PS1-3

In a hypothesis the __________________ variable is what is being tested, while the _________________ variable is the one being measured in response

• control; dependent

• independent; control

• dependent; independent

• independent; dependent

Tags

NGSS.HS-PS1-3

Life can exist under frozen surfaces in polar seas because…

• water is less dense than a solid.

• water is a terrific solvent.

• water has high surface tension.

• water has a high specific heat

Tags

NGSS.HS-ESS2-5

When placed in water, oil does not dissolve and stays separate. This means oil is ____________and ____

• hydrophilic and polar

• hydrophilic and nonpolar

• hydrophobic and polar

• hydrophobic and nonpolar

The macromolecules that make up the majority of the cell membrane’s structure are

• lipids

• proteins

• enzymes

• carbohydrates

1. Animals store most of their excess energy reserves as _______ because…

• glucose; it is easy to break down.

• fat; they store twice as much energy per gram.

• protein; it is a compact source of energy in their bodies.

• carbohydrates; they store twice as much energy per gram of glucose.