A gastrovascular cavity is a digestive sac with only a single opening. An alimentary canal has two openings (a mouth and anus) between its digestive tubes unlike the gastrovascular cavity in which food is ingested and eliminated through the same opening.
Here is your Answer.
Answer: it's because they need to provide a lot of energy.
Explanation: fat cells have many mitochondria because they store a lot of energy. Muscle cells have many mitochondria, which allows them to respond quickly to the need for doing work.
Hello,
I believe it's the C. capillaries because theirs no possible way for arteries to travel in Arteries are connected to the heart to let gallons of oxygenated and not oxygenated blood to travel up and down through your body.
