Biology First Quarter Mid Term

Name: First, Last.

The base unit for mass is the _____.

• Meter
• Kilogram
• Liter
• Mile

The amount of space an object takes up is its _____.

• Mass
• Volume
• Length
• Density

A bar of copper has a mass of 216g and a volume of 24 cm³. What is the density of copper?

• 9 g/cm³
• 0.11g/cm³
• 5184 g/cm³
• 322 mL

An irregularly shaped piece of gold was lowered into a graduated cylinder holding a volume of water equal to 17 mL. The height of the water rose to 20 mL. If the mass of the gold was 27 g, what was its density?

• 9 g/mL
• 10.5 g/mL
• 6.5 g/mL
• 8 g/mL

Find the median of these numbers: 5, 11, 2, 12, 4, 2

• 4.1
• 6
• 4.5
• 4

“If chocolate is related to ACNE, then consuming chocolate will cause an increase in the occurrence of acne.” What would ACNE be in this scenario?

• it is the independent variable
• it is the dependent variable
• it is the control group
• it is the deduction

A pharmaceutical company hopes to find a relationship between their new spray-on mosquito repellant and frequency of mosquito bites. Group 1 receives sprays of mosquito repellant. Group 2 receives sprays of water. Which of the following is the independent variable?

• the pharmaceutical company
• mosquito bites
• spray-on mosquito repellant
• sprays of water

Which type of graph would you use to compare the mass of DNA (grams) in the nucleus, mitochondrion, and chloroplast?

• Circle/pie graph
• Line graph
• Scatter plot graph
• Bar/column graph

Which macromolecules are found in cell membranes, serve as enzymes, and repair muscles and bones?

• Lipids
• Proteins
• Nucleic Acids
• Carbohydrates