Robert is studying a population of genetically-identical individuals. robert can conclude that these organisms a) reproduce asexually. b) do not reproduce. c) are multi-cellular. d) reproduce sexually.

What is earths lithospheric plates interact at

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

The greater an ecosystem's the more likely it is that some organisms could survive catastrophic environmental changes. a. species diversity b. producer population c. water availability d. carrying capacity