Diffusion ________
A) is the result of the potential energy of atoms
B) requires an input of cellular energy
C) occurs when particles spread from areas where they are less concentrated to areas where they are more concentrated
D) proceeds until equilibrium is reached
D
You might also like to view...
Speciation may be promoted within a complex tropic ecosystem due to increasing what?
a. habitat heterogeneity b. habitat homogeneity c. competition d. predation
The closest living gymnosperm relatives of angiosperms are thought to be the conifers
____________________ Indicate whether the statement is true or false.
The peppered moth provides a well-known example of natural selection. The light-colored form of the moth was predominant in England before the Industrial Revolution. In the mid-nineteenth century, a dark-colored form appeared. The difference is produced by a dominant allele of one gene. By about 1900, approximately 90% of the moths around industrial areas were dark colored, whereas light-colored moths were still abundant elsewhere. Apparently, birds could readily find the light moths against the soot-darkened background in industrial areas and, therefore, were eating more light moths. Recently, use of cleaner fuels has greatly reduced soot in the landscape, and the dark-colored moths have been disappearing. Should the two forms of moths be considered separate species?
A) Yes, because natural selection has affected the frequency of the two different forms. B) Yes, because they have completely different coloration. C) Yes, because they are reproductively isolated based on habitat. D) No.
The stains for spirochetes are argyrophil techniques
a. true b. false