Explain how disruptive selection could lead to the development of two species from one original founding population
What will be an ideal response?
Disruptive selection favors the extreme phenotypes of a population. Over time, this could lead to organisms so different that they are no longer able to reproduce with each other.
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By knowing the interrelatedness of various snake species, the appropriate antivenom can be chosen. Based on the figure above, which snake antivenom would you administer to a person bitten by an Australian copperhead, if antivenom to the Australian copperh
A) taipan B) common brown snake C) red-bellied black snake D) death adder E) tiger snake
During exhalation,
a. the pressure in the thoracic cavity is less than the pressure within the lungs. b. the pressure in the thoracic cavity is greater than the pressure within the lungs. c. the diaphragm moves downward and becomes more flattened. d. the chest cavity volume increases. e. movement of the diaphragm is inhibited.
The Montreal Protocol:a
has not yet resulted in measurable decreases in the quantity of global warming chemicals. b. has not yet been ratified by the U.S. Senate. c. banned global use of CFCs by 1998. d. was signed by all 50 states. e. stipulated a 50% reduction in CFCs.
Hershey and Chase demonstrated that when the bacteriophage T2 infected its host cell, the ________ is injected into the host but the ________ remained outside.
Fill in the blank(s) with the appropriate word(s).