Identify whether each of the following descriptions are true or false.

To sustain fossil fuel resources, alternative sources of energy should be used.
Drip irrigation uses more water and is not helpful in sustaining water use.
Limiting erosion, disposing of mining waste, and limiting water pollution from the mine helps sustain land use.
Deforestation is helpful in sustaining trees.

Mcdonalds + you= a. diabetes b. heat disease c. obesity d. all of the above

Humans also have a polarizing region on the posterior side of their limb bud, and that side of the limb bud develops into the “pinky side” of the hand. what does that say about the evolution of morphogens?

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time