Question:
Which is the best evidence that cell division is occurring constantly in our bodies?
OPTIONS:
- The body has to keep breathing around the clock.
- Active people often require more food than inactive ones.
- There are many different types of tissues in the human body.
- Human beings shed millions of
Answer:
Human beings shed millions of
Question:
The nucleus of MOST atoms consists of
OPTIONS:
- neutrons only
- protons and neutrons
- protons and electrons
- neutrons and electrons
Answer:
protons and neutrons
Question:
Food webs show feeding relationships among different types of organisms. Those organisms each have a specific niche. Which of the following best describes a function of decomposers in food webs?
OPTIONS:
- to recycle nutrients into soil
- to convert solar energy into food
- to provide food for secondary consumers
- to compete with secondary consumers for oxygen
Answer:
to recycle nutrients into soil
Question:
Which statement about the Sun is true?
OPTIONS:
- The Sun is a very large star that exists far from the Milky Way Galaxy.
- The Sun is at the center of the Milky Way Galaxy.
- The Sun is a medium-sized star near the edge of the Milky Way Galaxy.
- The Sun has the Milky Way and several other galaxies moving in orbits around it.
Answer:

The Sun is a medium-sized star near the edge of the Milky Way Galaxy.