The response is the digestive system!
The urchin's body cavity is predominantly occupied by the digestive system.
Answer:
This is due to a lack of proteolytic enzymes.
Explanation:
The diagnostics from the study indicate that protein digestion in the small intestine occurs at a slow rate, primarily because of either the absence or a significant reduction in proteolytic enzymes. These enzymes are crucial for enhancing the digestion speed, resulting in the production of amino acids that are subsequently absorbed into the bloodstream for muscle formation.
The answer is B. Animal cells lack a cell wall, while the shoebox signifies the cell wall. I hope this information has been helpful![[TAG_1]]