The terminal electron acceptor in respiration may be
A. oxygen.
B. nitrate.
C. NAD.
D. an inorganic molecule.
E.
oxygen, nitrate, AND an inorganic molecule.
E
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How does the hypothalamus of the sexually mature human male regulate reproductive hormone levels?
a. The hypothalamus continuously secretes large amounts of GnRH. b. The hypothalamus responds to low levels of testosterone by synthesizing and releasing testosterone. c. The hypothalamus secretes GnRH in brief pulses every two to three hours. d. The hypothalamus secretes LH in response to high levels of testosterone. e. The hypothalamus responds to low levels of GnRH by synthesizing and releasing testosterone.
What is the cause of coastal breezes?
What will be an ideal response?
The problem with defining abnormal behavior is that ____
a. too many disorders have similar phenotypes b. some behaviors are not abnormal, but simply variants c. biological factors related to abnormal behavior are not known d. mental illness is multifactorial, and therefore, cannot be defined e. twin concordance studies mental illness is due mostly to environmental components
Which of the following is the most appropriate pairing of microbe and biosafety level?
A. E. coli, BSL-3 B. anthrax, BSL-1 C. Ebola, BSL-2 D. methicillin-resistant Staphylococcus aureus (MRSA), BSL-2 E. tuberculosis, BSL-1