Question

scenario 2: fifty euglenas and fifty rotifers are living in a pond. someone dumps a barrel of toxic waste in the pond, which kills almost all of the euglenas and rotifers, leaving only five of each. which organism will be more successful in this new environment, euglenas or rotifers? give at least one reason for your choice in a complete sentence:

Explanation:

Euglenas are single - celled organisms with the ability to photosynthesize (autotrophic) and also ingest food (heterotrophic). Rotifers are multicellular and mainly heterotrophic. In a toxic environment, euglenas may have a better chance. If the toxic waste affects the food sources (for rotifers which rely on external food), euglenas can potentially use photosynthesis (if light is available) as an alternative energy source.

Answer:

Euglenas.
Euglenas can potentially use photosynthesis as an alternative energy source if food sources are affected by the toxic waste.