Biology Test Review: Biology Basics

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

• beaker

• funnel

• Petri dish

• graduated cylinder

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.

In performing any laboratory experiment, what is the first step performed out of the following choices?

• collect data from the experiment

• analyze data

• publish results

• form hypothesis

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.

When writing a conclusion, what should you always refer back to?

• procedure

• hypothesis

• your textbook

• the materials list

Hayden and Vinny have decided to do an experiment testing how sunlight affects plant growth. The students choose the

same type of plants, soil, pots and amount of water they give the plants. They also make sure each plant is put in their

designated area for the same amount of time each day. One plant is placed outside; one in front of a window that only

gets light for 1/2 the day, and one in a closet. The students collect data every day for two weeks. Their results show

that the plant outside grew the most and the plant in the closet had the least amount of growth.

What are the constant variables that Hayden and Vinny used in their experiment?

• type of plants

• the amount of light

• type of soil

• type of plants AND the type of soil

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

Which of the following is a quantitative observation of the image?

• Homer's eyes are open.

• Homer's skin tone is yellow.

• Donuts are delicious.

• There are two hairs on the top of Homer's head.

Which of the following is a good hypothesis between the two variables?

IV - amount of caffeine

DV - breathing rate of goldfish

• If the breathing rate of goldfish is lowered then the goldfish will need more caffeine.

• More caffeine will increase the breathing rate of goldfish.

• When a goldfish is given a large amount of caffeine it will be more likely that it will get hungry.

• If the amount of caffeine given to a goldfish is increased, then the breathing rate of the goldfish will increase.

The four main types of macromolecules found in organisms are carbohydrates, lipids, nucleic acids, and

• starches.

• fatty acids.

• monosaccharides.

• proteins.