Question

a new photosynthetic marine algal species is discovered. scientists observe that the organelles of its endomembrane system and nonendomembrane system are similar to those found in photosynthetic algae. scientists decide to examine the algas metabolism in the dark. which would most likely yield a positive result? measuring and collecting data on the amount of carbon dioxide produced by the alga measuring and collecting data on the amount of glucose produced by the alga measuring and collecting data on the activity of vacuoles measuring and collecting data is not possible, as photosynthetic organisms do not have metabolic activity unless given a light source.

Explanation:

In the dark, photosynthesis stops. Algae then respire, producing carbon - dioxide. Measuring CO₂ production gives metabolic data.

Answer:

Measuring and collecting data on the amount of carbon dioxide produced by the alga