Biology: Finals Semester 1 Review

What is the base unit for length in the metric system?

• Meter

• Kilometer

• Centimeter

• Millimeter

How many milliliters are in 3 liters?

• 1000 milliliters

• 2000 milliliters

• 3000 milliliters

• 4000 milliliters

How many kilometers are in 5000 meters?

• 0.5 kilometers

• 5 kilometers

• 50 kilometers

• 500 kilometers

Convert 5 kilometers to millimeters.

• 5,000,000 mm

• 50,000 mm

• 500,000 mm

• 5,000 mm

"The temperature outside is 20°C" is an example of which: observation or inference?

• observation

• inference

After seeing smoke from a fire, you say, "Someone must have left the stove on fire." Is this an observation or an inference?

• Observation

• Inference

Why do scientists prefer to make observations rather than inferences in experiments?

• Observations provide direct evidence while inferences are assumptions.

• Inferences are more accurate than observations.

• Observations are based on personal opinions.

• Inferences are easier to make than observations.

What is the independent variable in an experiment testing how light affects plant growth?

• Light intensity

• Plant species

• Soil type

• Watering frequency

Tags

NGSS.MS-LS1-6

How do controlled variables help ensure a fair experiment?

• They eliminate all variables.

• They allow for the isolation of the independent variable's effects.

• They introduce new variables to the experiment.

• They ensure the experiment is conducted multiple times.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

What is the primary function of carbohydrates in living organisms?

• Provide energy

• Store genetic information

• Build muscle tissue

• Regulate body temperature