If a person is suffering from heat stroke, which organ system is failing?
A) skeletal system
B) digestive system
C) nervous system
D) circulatory system
C
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Which of the following endocrine organs and hormones are not paired correctly?
A. anterior pituitary gland: vasopressin B. posterior pituitary gland: oxytocin C. hypothalamus: releasing factors D. anterior pituitary gland: growth hormone E. posterior pituitary gland: antidiuretic hormone
An assumption of twin studies is that
A) twins are more intelligent than singletons. B) both twins of a pair have had similar experiences. C) the twins are monozygotic. D) he twins are dizygotic.
Select the incorrect statement related to sarcomere structure and function.
A. Sarcomeres are the smallest subunits of muscle contraction. B. Stacks of thick filaments produce dark bands, called the A band. C. Two Z lines form the opposite borders of one sarcomere. D. Thin filaments are not present in the H band of a sarcomere. E. I bands consist of both thin and thick filaments.
Mutations in segmentation genes cause one body part to be substituted for another body part. Indicate whether the statement is true or false