An ecosystem is balanced when
a. energy does not enter or leave the ecosystem.
b. there are an equal number of plants and animals.
c. there is plenty of rain.
d. there are enough resources for every living thing.

What is the surface temperature of the ocean where hurricanes form? greater than 80 celsius approximately 27 celsius at least 76 celsius less than 10.5 celsius

Which statement best describes the role of religion and culture in ancient medicine?

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.