Which is an example of an organism getting energy from fuel?
A duck laying eggs.
A puppy growing into an adult dog.
A human eating an apple.
A tree losing its leaves in winter.
Which is true of root cells?
They are not found in plants.
They take in water and nutrients.
They have chloroplasts.
They make food for the organism.
How are red blood cells and nerve cells similar?
Neither are shaped like soccer balls without any air inside.
Neither help to move muscles in the body.
Both carry things throughout the body.
Both are found in plants.
Which can you conclude about viruses?
They cannot make people sick.
They are easier to see than bacteria.
They cannot reproduce.
They are not made of living cells.
How is a hand lens similar to a microscope?
Both make small things look bigger.
Neither is used in the study of cells.
Both are living things.
Neither is used by scientists.
