Organisms are motivated to achieve and maintain an ideal or optimal level of stimulation that maximizes their performance according to arousal theory.
How are organisms motivated ?
Animals are highly clever, can read body language, and have personalities. They are driven by physiological requirements including thirst, hunger, sex, company, air, and rest.
Hunger, thirst, the search for pleasure, and the avoidance of suffering are examples of biological reasons. The ambitious idea of Clark Hull was an early attempt to define how these drives influence animal behavior. Hull adapted the idea of biological regulation or homeostasis.
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Answer:
physical change
Explanation:
it changes the form of the substance
Answer:
IgG is the only antibody class that significantly crosses the human placenta. This crossing is mediated by FcRn expressed on syncytiotrophoblast cells.
Insulin has more than one non-reducible forms and has three subunits: alpha, beta, and gamma. Alpha is 135,00 Mr, beta is 95,000 Mr, and gamma is 210,000 Mr. The two major parts of the molecule are alpha and beta particles while gamma particles are minor.