Scientist found that over a period of 200 years a mountain Pond was transformed into a meadow during that time several communities of organisms replaced by different communities which of these best explains why new communities were able to replace older communities

How does the release of trapped gases in magma cause a volcano to erupt? a. they push the magma up the pipe and then are reabsorbed into the magma chamber. b. they cause the magma to change chemically into lava. c. the gases form vents that allow the magma to flow out. d. the gases rush out and carry the magma with them.

Individuals do not compete directly for resources, but are prey for the same predator

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.