Aseawater sample sent to your lab from the gulf coast. the has an orange tint to it, and organimsms in the jar have a pair of flagella and seem to rotate as they move through the water. what group is represented in this description?

Dinoflagellate is suspected to be present from the subgroup of protista as they are found in the fresh water habitat.

Explanation:

The orange colouration probably indicates that the cell has over-accumulated β-carotene.

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.