Answer:
a is right
Explanation:
B. An avalanche caused by skiers
C. High tides caused by full moons
D. The lowering of land surface caused by wind
B. Organize cells into tissues
C. Use chemical signals to communicate between its cells
D. Change food or sunlight into useful energy
B.) a characteristic that helps an organism find food
C.) a characteristic that evolves
D.) a characteristic that helps an organism avoid predators