At peak levels muscle exertion the mitochondria can supply only about
A. 1/5 of energy
B. 1/4 of energy
C.1/3 of energy
D. 70% of energy
C.1/3 of energy
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Which of these hormones prods the thyroid gland to release thyroxine?
A) follicle-stimulating hormone (FSH) B) adrenocorticotropic hormone (ACTH) C) gonadotropic hormones D) thyroid-stimulating hormone (TSH) E) luteinizing hormone (LH)
The strongest muscle contractions are normally achieved by ________
A) recruiting small and medium muscle fibers B) increasing the stimulus above threshold C) increasing the stimulus above the treppe stimulus D) increasing stimulation up to the maximal stimulus
From the time it is formed until it reproduces, the cell undergoes growth and carries out its functions in the body. What is the name for this portion of the cell's life cycle?
A) interphase B) functional phase C) life phase D) growth and development
An individual with Turner syndrome is a
A. male with functional testes. B. male with nonfunctional testes. C. female with nonfunctional ovaries and uterus. D. female with functional ovaries and uterus.