Well, plants have a vascular system whereas animals have a circulatory system. They both utilize tube structures that transport water and nutrients to the cells and different parts of the organism. Plants have xylem and phloem and animals have veins and arteries. An animal's circulatory system is driven by a pump, via the heart. A plant's vascular system is driven simply by gravity and the many useful properties of water. Plants have water-based solutions within their vascular systems and animals have mainly white and red blood cells within their circulatory systems.
D. increase, insulin
When a high carbohydrate meal is eaten, blood sugar levels _increase_, which stimulates the release of _insulin_, which then causes the cells to take up glucose.
Answer:
The Retina
Explanation:
The photoreceptors lie at the back of the retina
I'm not entirely sure why holistic treatments would be controversial in
animals. Perhaps what makes them controversial is the fact that we tend
to assume we know what makes them holistic and how they will be holistic
for the animal - this isn't necessarily the case, as we can only make a
good guess about it.