The variable that is changed by the experimenter is called:

Scientists use ___ to test a hypothesis.

A biologist is testing the effect of an antibiotic on the growth of a colony of bacteria, using 5 petri dishes. One petri dish is not treated with the antibiotic, so it is called the:

In an experiment, a scientist has multiple plants. Each plant is treated with a different fertilizer, except one group that is left alone. Each plant is the same species and roughly the same age. They are stored in the same conditions. The researcher measures each plant to see how much they grow over 2 weeks.

What is the independent variable?

In an experiment, a scientist has multiple plants. Each plant is treated with a different fertilizer, except one group that is left alone. Each plant is the same species and roughly the same age. They are stored in the same conditions. The researcher measures each plant to see how much they grow over 2 weeks.

Which is a constant in the experiment?

In an experiment, a scientist has multiple plants. Each plant is treated with a different fertilizer, except one group that is left alone. Each plant is the same species and roughly the same age. They are stored in the same conditions. The researcher measures each plant to see how much they grow over 2 weeks.

Which of the following is the dependent variable?

In an experiment, a scientist has multiple plants. Each plant is treated with a different fertilizer, except one group that is left alone. Each plant is the same species and roughly the same age. They are stored in the same conditions. The researcher measures each plant to see how much they grow over 2 weeks.

Which is the control group?

You look up and think "That cloud is gray". You have made an:

An experimenter finds that a plant has grown 10 cm in 2 weeks. What kind of data is this?

A researcher notes that some wildflowers are a lighter shade of blue than the other populations. This is __ data.

This hawkmoth is feeding on flower nectar. This is an example of:

Even though its -10 degrees outside, a Malamute dog has a body temperature of 98 degrees. The dog uses its heavy fur to maintain:

Organisms passing their DNA to their offspring is considered:

This organism will eventually turn into a moth. What characteristic best describes this:

This picture shows a:

Organisms that can convert abiotic energy into energy molecules (carbohydrates etc...) are called:

Photosynthesizers and Chemosynthesizers can produce their own food, and serve as food for the food web. Which terms best describe them (select all that apply).

Predators like lions and wolves are classified as (Select all that apply)

All the elk in the Yakima river valley would be considered the same (select the most specific answer):