The protist known as an euglena is sometimes considered an animal-like protist and other times a plant-like protist. why would scientists classify it as a plant-like protist?
a. presence of chlorophyll
b. the way it moves
c. presence of an eye spot
d. none of these

The correct answer is A. They are classified as a plant-like protist because of the presence of chlorophyll. They resemble plants by having a cell wall, chlorophyll and the capability of carrying out photosynthesis. All plant like protist live in water and have the same reproduction and movement.

Glucose, also called grape sugar, blood sugar or corn sugar, is among the simplest and one of the primary naturally occurring sugars. produced naturally by plants as the primary photosynthesis product, it is heavily used by living beings as a main energy source and is necessary for cellular respiration. chemically, it is a monosaccharide carbohydrate and serves as a building block for complex sugars like starch.