The draining of playa lakes is an example of humans using Earth's freshwater resources. What are the environmental
consequences of this?
A Habitat for millions of elk and deer is lost.
B Water necessary for proper aquifer recharge is lost.
C Millions of waterfowl are impacted due to the loss
of habitat and food resources.
D All of the above

Hector is back from his morning run and is feeling light-headed because his energy is depleted which food item will provide him with a quick source of carbohydrates

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.

You sample a population of butterflies and find that 56% are heterozygous at a particular locus. what should be the frequency of the recessive allele in this population?