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Autotrophs that utilize light as their energy source are _____

The ultimate source of all the food we eat and the oxygen we breathe is ____

Name the four substances recycled during photosynthesis and respiration

What is the one component during photosynthesis that is not recycled and must be constantly available?

Which stage of aerobic cellular respiration requires oxygen?

Personal space is not stable but contracts and expands with changing interpersonal circumstances and with variations in physical settings.

The tiny pores in leaves that allow gases to pass through are called ____________

The oxygen released into the air as a product of photosynthesis comes from ______

Leaders in task groups may be professionals or lay people.

In the chloroplast, sugars are made in a compartment that is filled with a thick fluid called ____