I think it’s insulin becaus Without insulin, glucose may be present in the blood but the cells are unable to utilize it. People with diabetes lack an adequate supply of insulin
Answer:
I believe its option b. carbon dioxide.
Answer: I think its to clean it.
Explanation:
D) Turtles were the first group of animals to branch off in this tree of animals.
Turtles were the first group of animals to branch off in this tree of animals. According to the tree, the animals share a common ancestor. The first branch shows that what we call a speciation event occurred, resulting in two lineages. The first group of animals to result were the turtles. All the other animals are on the other branch. This does not indicate that any group is more highly evolved than the other.
Respiratory system and circulatory system :)
