Imagine that you are a marine biologist and you notice that a certain type of crab tends to be considerably smaller in a local bay than the same type of crab is in the water outside the bay. What hypothesis might account for this difference? How would you
go about testing this hypothesis?

Explain the significance of the increased cell specialization of the volvocine line

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

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