A landslide has isolated a part of the cicada population from the main population. After a few generations, the new generations of cicadas exhibited dramatic gene differences from the old one.
Which mechanism is the most likely cause of these differences?
OA
bottleneck effect
OB.
disruptive selection
OC. migration, or gene flow

Consider the diagram below, which represents components of the biosphere. what do the two arrows in the diagram most likely represent? a. radiation b. photosynthesis c. cellular respiration d. energy conversions will give to anyone who answers quickly

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.