Scientists are given a collection of objects. They have to use a microscope to determine which objects were once living and which are nonliving. How will they determine which objects were once living? a.
Once-living objects will move.
b.
Once-living objects will be brown.
c.
Once-living objects will contain cells.
d.
Once-living objects will be larger than nonliving parts.

Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.

Which statement best describes lactic acid fermentation? a. lactic acid fermentation is the first step of cellular respiration. o b. lactic acid fermentation is the final step of cellular respiration. re to berate c. in the absence of oxygen, cells release atp by breaking down lactose into glucose. e der lade res o d. in the absence of oxygen, cells release atp by breaking down glucose into lactate. ar

An area has a few days of low humidity, warm air temperature, and high air pressure. what kind of weather is this area experiencing? o fog o snow storms o sun