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SCI 221 Week 1

Homeostasis

QuestionAnswer
Shivering to try to raise your body temperature back to normal would be an example of: the body trying to maintain homeostasis. a positive-feedback mechanism. a negative-feedback mechanism. both A and C. both A and C.
Homeostasis can best be described as: a constant state maintained by living and nonliving organisms. a state of relative constancy. adaptation to the external environment. changes in body temperature. a constant state maintained by living and nonliving organisms.
Negative-feedback mechanisms: minimize changes in blood glucose levels. maintain homeostasis. are responsible for an increased rate of sweating when air temperature is higher than body temperature. All of the above are correct. All of the above are correct.
Which of the following is a protein substance with no DNA or RNA and is thought to be the cause of mad cow disease? Virus Bacteria Prion Protozoan Prion
Pathogenesis can be defined as: a specific disease. a group of diseases. the course of disease development. a subgroup of viruses. the course of disease development.
The normal reading or range of normal is called the: sensor point. set point. effector point. integrator point. set point.
Epidemiology is the study of the _____ of diseases in human populations. occurrence distribution transmission All of the above are correct. All of the above are correct.
Intrinsic control: usually involves the endocrine or nervous system. operates at the cellular level. is sometimes called autoregulation. operates at the system or organism level. is sometimes called autoregulation.
Of the 11 major body systems, which is the least involved in maintaining homeostasis? Circulatory Endocrine Lymphatic Reproductive Reproductive
The contraction of the uterus during the birth of a baby is an example of _____ feedback. negative positive inhibitory deviating positive
 

 



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