Definition: This substance is made from glucose through glycolysis, and supplies energy to living cells through the Krebs cycle when oxygen is present (aerobic respiration), and alternatively ferments to
produce lactate when oxygen is lacking (fermentation).

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

Hairs that clean dirt out of the air in your nasal passages are called: a. sinus b. trachea c. cilia d. mucus