Which earth system is the smallest carbon reservoir?
a. the atmosphere
b. the biosphere
c. the geosphere
d. the hydrosphere

During a hot day, warm and moist air rises and cools in the atmosphere. which even would occur next on such a day? a. condensed droplets would gather to become water vapor. b. water vapor would condense into tiny droplets. c. water droplets would evaporate to form rain and snow.

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.