The following diagram shows an incomplete equation for cellular respiration
Glucose + Oxygen - Carbon Dioxide + Water + ?
What information will complete this equation?
A Food
B Wastes
C Energy
D Chlorophyll

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.