Test 1 Scientific Method and Characteristics of Life

A hypothesis is

• A possible answer to a question

• An observation

• A wild guess

• The answer to a question

Tags

NGSS.MS-LS1-5

A scientist studying African elephants reads a newly-published journal article written by another researcher. After she studies the information, she sets out to repeat the procedure. What is the scientist attempting to do?

• Select the dependent variable

• Identify the stimulus

• Disprove a theory

• Confirm that what the journal article claims is true

Which of these terms describes an organism's ability to maintain a stable internal environment?

• homeostasis

• isolation

• interaction

• reproduction

Tags

NGSS.HS-LS1-3

Which is the best definition for metabolism?

• The reactions that break down and build up materials in an organism.

• The process organisms use for asexual reproduction.

• The uptake of beneficial gasses, use of those gasses, and removal of gas wastes.

• A change in response to an environment.

Tags

NGSS.MS-LS1-7

Which of the following is not a characteristic of life?

• Breathing

• Reproducing

• Evolving

• Growing

• All of these are characteristics of life.

Tags

NGSS.MS-LS4-4

Which of the following statements is not part of the cell theory?

• All living things are made of one or more cells.

• The cell is the smallest unit of life.

• All cells come from pre-existing cells by cell division.

• All of these are parts of the cell theory.

Which is not an example of homeostasis?

• Shivering when you get cold.

• Your body releases insulin (which takes sugar out of your blood) after you drink a Coke.

• You breathe faster when you exercise.

• Your body gets hotter and hotter with fever when you have a bad infection.

Which is the fourth step in the scientific method?

• Perform an experiment.

• Create a hypothesis

• Analyze your data.

• Draw a conclusion.

What is the seventh step in the scientific method?

• Draw a conclusion

• Analyze the data

• Perform an experiment

• There is not a seventh step.

Which is the best hypothesis?

• If I put gas in my car then the engine will start.

• My car won't start.

• Putting gas in my car allowed me to start it.

• My car is a piece of junk.

• Everyone should put gas in my car.