A change in allele frequencies in a population over time in response to environmental pressure is characteristic of all of these EXCEPT:

Explain why the plants cortex would serve as the best food source for animals

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d

Vessels draining the myocardium of the heart, open primarily ,into which chamber?