Fig. 1-3a, p. 4

atom

molecule cell tissue organ organ system

Fig. 1-3b, p. 4

multicelled organism population community ecosystem

biosphere

Energy input, from sun

Nutrientcycling

energy output (mainly metabolic heat)Fig. 1-4, p. 6

Producers

Consumers

Table 1-1, p. 8

Bacteria Archaea Eukarya

Fig. 1-8, p. 8

Fig. 1-8, p. 8

Table 1-2, p. 11

Table 1-3, p. 12

Fig. 1-10, p. 13

Table 1-4, p. 13

Results Control GroupEats regularpotato chips

Experimental GroupEats Olestrapotato chips

Experiment Control GroupEats regularpotato chips

Experimental GroupEats Olestrapotato chips

HypothesisOlestra® causes intestinal cramps.

PredictionPeople who eat potato chips made with Olestra will be more likely to get intestinal cramps than those who eat potato chips made without Olestra

ConclusionPercentages are about equal. People who eat potato chips made with Olestra are just as likely to get intestinal cramps as those who eat potato chips made without Olestra.These results do not support the hypothesis. Stepped Art

Fig. 1-11, p. 14