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students placed yeast cells into a test tube. they added sugar solution to the test tube and
placed a rubber stopper on the end. they left the test tube at room temperature to examine
the next day. students researched yeast and discovered that yeast are single-celled fungi that
contain many mitochondria, but chloroplasts are absent. the teacher asks students to form a
hypothesis to address the experimental question, "what gas will the yeast produce in the test
tube over the next 24 hours? "
based on this information, what hypothesis is valid?
a carbon dioxide will be produced due to cellular respiration.
b carbon dioxide will be produced due to photosynthesis.
c oxygen will be produced due to cellular respiration.
d oxygen will be produced due to photosynthesis.
sia

Where does all the water go? according to the environmental protection agency (epa), in a typical wetland environment, 39% of the water is outflow; 46% is seepage; 7% evaporates; and 8% remains as water volume in the ecosystem (reference: united states environmental protection agency case studies report 832-r-93-005). chloride compounds as residuals from residential areas are a problem for wetlands. suppose that in a particular wetland environment the following concentrations (mg/l) of chloride compounds were found: outflow, 60.4; seepage, 73.7; remaining due to evaporation, 26.4; in the water volume, 46.8. (a) compute the weighted average of chlorine compound concentration (mg/l) for this ecological system. (round your answer to one decimal place.) mg/l (b) suppose the epa has established an average chlorine compound concentration target of no more than 58 mg/l. does this wetlands system meet the target standard for chlorine compound concentration? yes. the average chlorine compound concentration (mg/l) is too high. yes. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is lower than the target. no. the average chlorine compound concentration (mg/l) is too high.

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to

Explain the significance of meiosis in sexual reproduction