a scientist is conducting an investigation that involves water silver carbon dioxide and oxygen gases which group of statements best describes all of the materials he is using in the investigation

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

answerlength of time the medication is in contact with the skin(moistur level of the skin) depth of respirations blood supply to the area; all of the above; ///