Plant-like protists get there food from photosynthesis, which is the process of converting sunlight into energy.
The plants that use photosynthesis would die because the plants would not create food. They would die of hunger. Without another source of food, most of the animals would likewise die off to.
<span>The smallest unit that can evolve is a _____. cell</span>
Both have a pump that pushes materials throughout the organism.