Question: Choose your answer.

New vaccines for diseases are being developed all the time. How do vaccines most likely help people?
My Answer: Vaccines help prevent illnesses.

Question: Choose your answer.

A student observes cells in an object by using a microscope. The student thinks that the object was part of a living thing. Which statement explains why cell theory can be used to support the student's thinking?
My Answer: Cell theory states that all living things are made of cells.

Question: Choose your answer.

Which object is nonliving?
My Answer: bicycle

Question: Choose your answer.

Which step will most likely ensure that the results of an investigation are valid?
My Answer:
comparing the results with those of other scientists