Adaptation has a different meaning in the context of evolution than in everyday use. Is the following statement correct or incorrect in the scientific sense? "When an individual fiddler crab moves from water onto land, it changes its posture to a more upright stance to adapt to the increased weight of its body on land."

The statement is correct in scientific sense.

Explanation:

Adaptation refers to the traits or characteristics posses by living organisms which enable the organisms to be better fitted to survive, and reproduce in it's environment.

Adaptation is an evolutionary process I.e. features are evolved by the organisms to be better suited in it's environment.

From the statement, an individual crab develop characteristics that enable it to change its position which enable it upright stance to further adapt to life in land.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.  

genetic variation will increase because of a new habitat and food source.

explanation: