Describe how natural selection could operate to change the genetic makeup of a population of rabbits if a new, faster predator was introduced into their habitat
What will be an ideal response?
Populations have natural variation in their frequency of various alleles. Interactions with the environment or other organisms may favor (or, conversely be detrimental to) individuals with certain genetic makeup. Those individuals may then show enhanced (or reduced) survival and/or reproduction. With the next generation, the offspring of that parental generation will likely carry more of those "favored" traits, and so on through generations, resulting in a gradual change in the genetic makeup of the population.
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Which is TRUE regarding how gasses dissolve in liquids?
A. The concentration of a particular gas in a liquid equilibrates to match the concentration of that gas in the air to which the liquid is exposed. B. Different gasses have the same solubility in liquids. C. The partial pressure of a gas in a liquid is equal to the amount freely diffusing in the liquid plus the amount bound to large molecules within the liquid. D. The partial pressure of a particular gas in a liquid equilibrates to match the partial pressure of that gas in the air to which the liquid is exposed. E. As the partial pressure of a particular gas in an air sample increases, the concentration of that gas in a liquid exposed to that air sample decreases.
Select the pair below that does not match
A) Chemoreceptors - detect chemicals B) Photoreceptors - detect light C) Mechanoreceptors - detect magnetic fields D) Thermoreceptors- detect temperature
Oxidative fibers have high ____________________ content, which is why they are also called ____________________ fibers
Fill in the blank(s) with correct word
Anabolic steroids are ______ forms of testosterone.
A) natural B) synthetic C) super-active D) ineffective