You turn on the shower and check the water temperature with your hand. Your brain is able to monitor increasing temperature because the thermosensitive neurons in your skin
A. transmit action potentials to different brain regions as the water warms up.
B. transmit bigger action potentials to the brain as the water warms up.
C. gradually adapt to the stimulus.
D. transmit action potentials at a greater rate when the water warms up.
E. integrate temperature information.
D. transmit action potentials at a greater rate when the water warms up.
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The earliest photosynthesizers likely used ____ as electron donors
a. chloride gas b. hydrogen peroxide c. hydrogen sulfide d. magnesium sulfide e. ammonia
If disease symptoms are associated with a genetically inherited allele, tests can be performed
A. on the fetus, during pregnancy. B. during the in utero fetal stage or any stage of life after birth. C. during adulthood. D. on the embryo prior to implantation. E. during childhood.
Which of the following is necessary for the fetus to develop female gonads?
a. lack of testosterone exposure b. presence of Y chromosome c. estrogen d. progesterone e. both estrogen and progesterone
If cytosine makes up 15% of the bases in a sample of DNA from an organism, then adenine makes up what percentage of the bases?
What will be an ideal response?