When presented with the question “does plant food x have an effect on the production of tomatoes? ” develop a hypothesis to answer this question and then design a small controlled experiment to test the hypothesis.

My hypothesis: If Plant Food X is used on a tomato plant, then production rate will increase.  

Experiment: Gather 2 tomato plants of the same age and height. Make two groups, an experimental group (a tomato plant with using Plant Food X) and a controlled group (a tomato plant without use of fertilizer).

For about one week, give both plants the same amount of water, humidity, sunlight, and air temperature. after a week measure the number and height of the tomatoes produced. Once the week is over, Gather the information in a table and compare to hypothesis.

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.