C- Single-celled organisms and soft, boneless animals.
The correct answer should be
<span>D. Autonomic nervous system
It is called autonomic because it works on its own and it regulates organs functioning which is a thing that happens involuntarily. It regulates heart beats for example and it's not something that you do voluntarily since the heart beats regardless of you. It also controls things like vomiting or sneezing that you can't choose not to do when it starts happening.</span>
I belive the answer would be "A" because the cell would be trying to delute the solution on the outside, and strenghting the solution on the inside.
Answer:
Skin = Epithelial tissue
Bark of tree = Cork
Bone = Connective tissue
Lining of kidney tubule = Simple cuboidal epithelium
Vascular bundle = Xylem and Phloem
