Question

Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?(1 point) Responses Only species Y is anaerobic Only species Y is anaerobic Both species X and Y are aerobic Both species X and Y are aerobic Only species Y is aerobic Only species Y is aerobic Both species X and Y are anaerobic

Answer 1

Based on the observations provided, the conclusion that can be made is: Only species Y is anaerobic.

Here's the reasoning:

• Species X produces CO2 and H2O, which suggests that it is undergoing aerobic respiration since these byproducts indicate the use of oxygen in the process.
• Species Y produces ethyl alcohol and CO2, which is indicative of fermentation, a form of anaerobic respiration.

Therefore, species Y is anaerobic, while species X is aerobic.