They were about 16 to 100 years old
Answer:
The correct option is: B. hormone
Explanation:
A hormone is a type of signalling molecule in multicellular organisms. The glands responsible for secreting hormones form the endocrine signaling-system.
Hormones are the chemical compounds that are transported by the circulatory system to the various organs to regulate behavior and physiology in a multicellular organism.
Answer: C
Explanation:
more numerous than cones are in the fovea
