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 have chloroplasts.
They take in water and nutrients.
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.
Both carry things throughout the body.
Both are found in plants.
Neither help to move muscles in the body.
Which can you conclude about viruses?
They cannot reproduce.
They cannot make people sick.
They are easier to see than bacteria.
They are not made of living cells.
How is a hand lens similar to a microscope?
Neither is used in the study of cells.
Neither is used by scientists.
Both are living things.
Both make small things look bigger.
