It occurs in many mammals besides humans; a prominent example is porcupines, which raise their quills when threatened
The answer is d I hope this helps
I think the correct answer from the choices listed above is the third option. The scientific information that most likely lead to school districts requiring vaccines would be that vaccines prevent diseases and can improve a school’s safety. Hope this answers the question. Have a nice day.
Answer: probably Nerve cells (for some)
Explanation: Nerve cells are also called neurons. Their function is to communicate with other neurons and the body. The adaptations of a nerve cell are dendrites with receptor proteins, an axon, myelin, synaptic terminals and neurotransmitters.
