Question

What physiological processes in protists are analogous to excretory and

digestive functions of animals?
​

Answer 1

Protist cells may contain a single nucleus or many nuclei; they range in size from microscopic to thousands of meters in area.

Protist cells may contain a single nucleus or many nuclei; they range in size from microscopic to thousands of meters in area.Protists may have animal-like cell membranes, plant-like cell walls, or may be covered by a pellicle.

Protist cells may contain a single nucleus or many nuclei; they range in size from microscopic to thousands of meters in area.Protists may have animal-like cell membranes, plant-like cell walls, or may be covered by a pellicle.Some protists are heterotrophs and ingest food by phagocytosis, while other types of protists are photoautotrophs and store energy via photosynthesis.

Protist cells may contain a single nucleus or many nuclei; they range in size from microscopic to thousands of meters in area.Protists may have animal-like cell membranes, plant-like cell walls, or may be covered by a pellicle.Some protists are heterotrophs and ingest food by phagocytosis, while other types of protists are photoautotrophs and store energy via photosynthesis.Most protists are motile and generate movement with cilia, flagella, or pseudopodia.

Answer 2

Answer:

Excretion, the process by which animals rid themselves of waste products and of the nitrogenous by-products of metabolism. Through excretion organisms control osmotic pressure—the balance between inorganic ions and water—and maintain acid-base balance. The process thus promotes homeostasis, the constancy of the organism’s internal environment.