A couple has already had 3 girls with cystic fibrosis, and were hoping to have a normal child for their
fourth. What are the chances that the fourth child will be a normal male?
a. 0
b. 1/8
c. 1/4
d. 3/8
e. 1/2
D
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A lesion in which brain center is most likely to lead to a coma or even death?
a. occipital cortex b. frontal cortex c. hypothalamus d. brain stem e. spinal cord
Which of the following is dense connective tissue
that joins two bones? a. sutures b. ligaments c. muscles d. tendons e. fascia
________ can behave as an enzyme and may have been the first macromolecule leading to the first cells
Fill in the blank(s) with correct word
In his 1961 paper "The Paradox of the Plankton," ecologist G. E. Hutchinson noted that several species of algae coexist, sharing the same few mineral nutrient resources in homogeneous open-water systems
Because there is little chance of resource partitioning and niche differentiation in such a situation, the paradox of their coexistence is an apparent violation of A) Darwin's theory of evolution by means of natural selection. B) the law of mass action. C) the second law of thermodynamics. D) the climax theory of succession. E) the competitive exclusion principle.