BIO100 Exam 1 review

Using the scientific method, what is the first step you would take?

• generate a hypothesis

• make predictions

• make an observation

• test your hypothesis

T/F: The experimental group is the group that does not receive the independent variable, or remains unchanged in an experiment.

• True

• False

What process leads to organisms that adapt over time to their environment?

• Natural selection

• Homeostasis

• Equilibrium

• Organization

In an ecosystem there are grasshoppers which feed on grasses. When the grasshoppers die, their dead bodies are broken down with the help of fungi. What would be a decomposer in this scenario?

• grasshopper

• grass

• fungi

Adrianna is studying interactions between red deer and white tail deer in Canada. What level of organization is she studying?

• ecosystem

• biosphere

• community

• population

Adrianna is studying the interaction between several species of bird. She observes the behaviors of 5 blue jays, records the location of 2 robins, and observes 3 finches. How many organisms does her study include?

• 5

• 3

• 2

• 10

The smallest unit of matter is the ____ which can also be called an element.

• ion

• electron

• atom

• molecule

an atom with a positive or negative charge is called a(n):

• molecule

• ion

• isotope

• isomer

Sharing electrons to complete the valence shell of 2 atoms is an example of what type of bond?

• covalent

• ionic

• hydrogen

• synthesis

Glucose (C6H12O6) is a:

• molecule

• compound

• both

• neither