3. A. The part of the earth
covered in water.
B. The gaseous layer that
surrounds the earth.
C. The part of the earth
where we can find living
organisms.
D. The layer above the
4. C. The part of the earth
where we can find living
organisms.
5. 2. Do all living things
reproduce in the same way?
8. 3. How do people interact
with their environment?
9. A. They touch everything
around them.
B. They move around,
communicate, and use their
senses to detect
information.
C. They use their sense of
sight, smell, taste, touch,
and hearing.
10. B. They move around,
communicate, and use their
senses to detect
information.
11. 4. What basic life process
are we performing when we
breathe?
21. A. It controls everything that
happens inside a cell.
B. It protects the cell.
C. It is a thick liquid that
contains organelles.
D. It holds the cell together.
