Psychology 2301 Chapter 2 Quiz Answers Questions And Answers 100% Verified A+ Guaranteed

The human body is composed of how many chromosomes? {Ans: 46}Chemicals that are manufactured by endocrine glands and circulated in the bloodstream to change or maintain bodily functions are called _______. {Ans: Hormones}Both early and modern-day brain researchers have used _______ to study the brain. {Ans: Dissection of the brains of deceased humans.}in the lock-and-key analogy for neurotransmitters, the lock refers to the ______, whereas the key refers to the _______ {Ans: dendrite receptors; shape of the neurotransmitter}The message that travels along an axon of a neuron is called an _____________ {Ans: action potential.}Modern psychologists believe that many human characteristics such as eye color, hair color, or height are ________ {Ans: Polygenic.}