Which gland exerts primary control over the concentration of sugar in the blood?
What will be an ideal response?
pancreas?
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In the following gene sequence, the original sequence is ABC* DEFGH. It now reads ABC* DGFEH. The * indicates the centromere. This type of mutation is a(n)
A) nonsense mutation. B) inversion. C) translocation. D) duplication. E) point mutation.
When pH levels in the blood get too low, chemical buffers are released that return blood pH back to normal levels
This is an example of ___.
a. negative feedback b. positive feedback c. ectothermal reactions d. sensory perception e. endothermal reactions
A deficiency of which nutrient will interfere with the proper development of the neural tube?
a. vitamin A b. vitamin D c. vitamin C d. vitamin B12 e. folic acid
Various species of lightning bugs have their own characteristic patterns of light flashes. Females flash an answering code to the males' code, and mating follows the recognition. This is an example of a genetic isolating mechanism called
A. habitat preference. B. seasonal isolation. C. behavioral isolation. D. introgressive hybridization.