Biology Multiple Choice Quiz

Classification of Organisms

• Humans belong to the domain Eukarya.
• Unicellular organisms that lack nuclei belong to the domains Archaea and Bacteria.

Scientific Method

• The scientific method is a multistep process that helps gain new scientific knowledge.
• It involves hypothesis development, observation, experimentation, and prediction.

Experiment Design

• An experiment is designed to test the effect of a new medication on the level of cholesterol in the blood.
• The experimental subjects are divided into two similar groups, one receiving the medication and the other a placebo.
• The dependent variable is the level of cholesterol in the subjects' blood.

Hypothesis and Theory

• A broad hypothesis that has been supported by repeated experimentation is known as a theory.
• A hypothesis is developed using observations and inductive reasoning.

Biology

• The smallest unit of life that demonstrates all the properties of life is a cell.
• All the organisms that occupy a specific area, such as a college campus, are considered a community.
• A community and its environment together form an ecosystem.

Graphing

• The independent variable is usually plotted on the x-axis of a graph.

Scientific Hypothesis

• An acceptable scientific hypothesis can be tested and can be proven false.
• A hypothesis should be specific and measurable.

Experiment Considerations

• In designing an experiment, it is essential to consider factors such as participant selection, group size, and control groups.

Anecdotal Evidence

• Anecdotal evidence is based on personal experiences and is not a reliable source of scientific evidence.

Homeostasis

• The maintenance of a relatively stable internal environment is known as homeostasis.

Human Characteristics

• Humans are distinguished from other animals by features such as bipedalism, large brain, and capacity for complex language.