The blue lobster results from a rare genetic mutation. imagine that this mutation makes the lobsters more attractive to lobsters of the opposite sex, and thus more likley to breed. how would you describe theis mutation?
behavioral mutation
harmful mutation
mutation
neutral mutation

helpful mutation

Explanation: A mutation is a change in the sequence of genes and it is divided into different types. If the lobster is more likely to breed because of its colour mutation, it is a helpful, also known as beneficial, mutation. The reason is that it is obtaining a benefit because of its attractive colour.

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.  

sorry, is there a picture? i do not see any arrows.

wut? unius0123 wut?