Which of these are birds? (3)
*
Flamingo
Pig
Eagle
Clownfish
Salamander
Ostrich

What’s the student’s scientific question

Describe the relationship between isotonic solutions, equilibrium, and water movement into and out of a cell.

18. over time, how do sand dunes tend to migrate? a. perpendicular to the movement of the wind b. in the same direction as the wind blows c. toward the wind d. in random directions