Answer:
They all have hair like structures for movement like flagella or cilia.
Answer:
C . A cell that is surrounded by a rigid cell wall is the correct answer .
The one I think is the snake because it does not have 4 legs.
When an ecosystem has a scarce nutrient, that is when there is a nutrient limitation.
So the answer is C. <span>Nitrogen is typically the limiting nutrient in freshwater environments.
This is because Nitrogen is the "scarce" nutrient </span>
I believe that Calpurnia finds the food on the back porch.