The Bubonic plague and the raids by Vikings.
The correct answer is letter D.
Explanation: Out-Groups: With other evolutionarily close groups, where cladogenesis has been anterior.
Reflex
reflexes are involuntary and automatic responses to stimuli
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.
