Did all of the fossil skulls appear to have teeth?
a. Yes
b. No
a
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Parathyroid hormone (parathormone)
What will be an ideal response?
Which one of the following is the lowest level of biological organization in which evolutionary change can occur?
A) cell B) organism C) community D) population
Hospital data shows that human infants born with an intermediate birth weight have a better chance of survival than those that weigh much less or much more. Larger than normal babies may have a difficult delivery, while smaller than normal babies may not be fully developed. What type of selection is occurring? Is the variability in birth weight in human populations increasing or decreasing?
What will be an ideal response?
A ________ is any disease-producing microorganism.
Fill in the blank(s) with the appropriate word(s).