Some inquisitive students found two slugs and wanted to take them to science class. the only container they could find was a used potato chip bag. the students stored the slugs in the bag to take to school the next day, when the students opened the bag at school, they found that the slugs had melted and turned to slime. why did this happen?

Salt in the potato chips packet converted the slug into slime

Explanation:

The body of a slug has lot of water inside it. Also its outer skin is highly permeable. When the body of slug comes in contact of salt, the body of slug starts secreting mucus in order to remove the salt. But when this salt is either is excess quantity or regularly applied as in the case of potato chips packets, then higher amount of water is excreted out of the body of slug as result of osmosis.

Excess loss of water causes dehydration and due to which the slug dies and convert into slime.

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.  

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.