1. The study of relationships between different organisms and their
surroundings is called
A. ecology
B. environment
C. chemistry
D. geology

2. Which is the best description of
mutualism?
A. When two organisms eat the
same food
B. When two organisms rely on
each other for survival
C. When two organisms both get
energy from the sun
D. When two organisms compete
with each other

3. Which of the following relationships
from the passage best represents
predator/prey?
A. Bees and flowers
B. Owls and mice
C. Beavers and fish
D. Fish and water