Which of the following could act in a density independent manner to limit a
population?

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.

answer( increase) their individual contractile activity;