Which of the following terms refer to the total number of different species, including humans, on Earth or in an area? (Choose all that apply) a. species richness
b. biosphere
c. biodiversity
d. species diversity

Dwarf galaxies are select one: a. relatively rare. b. not very bright c. mostly spiral shaped. d. none of these.

Which experiment would most likely contain experimental bias ?

Amylase is an enzyme found in the human digestive system. why do you think it was important to keep the enzyme temperature above 37 degrees celsius (98.6 degrees f)? describe what might happen if the temperature decreased by 10 degrees celsius.