The best answer is Hormone.
Hormones are chemicals secreted by one tissue and affect the functioning of other tissues and cells.
Hormones are secreted by glands of the endocrine system. They are secreted into the blood and also extracellular fluid. They then circulate in the blood and come into contact with essential all cells, but a specific hormone will only affect a limited number of cells, namely the cells that bear a receptor for that hormone.
Red blood cells for example have receptors for the insulin hormone that is produced by the pancreas. They will therefore be directly affected by insulin while all other cells in the blood remain oblivious of this hormone..
Answer:
D - Technology has changed over the years, but parents still worry about it.
The answer is D because in both of the light pink boxes, it says that the parents are concerned about it, and in the first pink box it talks about the radio and then in the next box it talks about video games, TV, and the internet, which is showing that technology has improved over time.
A and B are wrong because neither of the two pink boxes talk about the year(s) it took place, so the main idea isn't based of of those two. C is wrong because neither of the two pink boxes talk about the dangers of being online. But D is the only option that is included in both boxes, so D is correct.
Answer:
Is throwing a paper bag out of the window of a car by saying it is biodegradable.
Explanation: I feel like your missing something this question doesnt make sense
