Which organ system is correctly aligned with its function?
A) Nervous system generates heat
B) Lymphatic system maintains blood homeostasis
C) Integumentary system forms a physical barrier
D) Reproductive system produces blood cells
Answer: C
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White blood cells and platelets are packed in a thin, cream-colored layer called the buffy coat
a. True b. False Indicate whether the statement is true or false
In cells that are not dividing, chromosomes uncoil to form a tangle of fine fibers known as
A) nucleosomes. B) centromeres. C) chromatids. D) chromatin. E) nucleoli.
The sensitivity of the muscle spindle is maintained by ________.
A. alpha motor neurons B. gamma motor neurons C. a stretch reflex D. secondary afferent (group II) fibers E. anulospiral endings
Which of the following is most descriptive of a state of prolonged fasting?
A. The secretion of insulin, glucagon, ACTH, and cortisol would all be increased. B. Brain metabolism will shift to increase utilization of glucose and to decrease oxidation of ketones. C. Muscle protein will be broken down to provide substrates for hepatic and renal gluconeogenesis. D. The secretion of insulin, glucagon, ACTH, and cortisol will all be decreased. E. The secretion of insulin and cortisol would be increased, while glucagon and ACTH secretion would be decreased.