The students in mrs. cosby's class were observing worms. the students wanted to find out if a worm's body weight is related to how much food it eats. for their experiment, the students set up five containers in the same place, each with the same type of worm. they measured the starting weight of each worm before they began, and then offered the same amount and type of food to all the worms. what data must they collect during their experiment?

The right answer is collecting weight data during the experiment until the end.

This type of study is a single-parameter-study, it requires the collection of data of a single parameter which is the weight of the studied population, These data are written, numerical and quantitative.

In this experiment, we are looking to verify if weight gain is directly correlated with the amount of food ingested by the worms, like "the more the worms eat, and their more important is", by taking the weight of the worms a many times during the experiment, and draw a curve afterward.

In this kind of experiment, one should not exclude the fact that there is a metabolic variation between worms.

doctors i believe if i'm wrong sorry

increase soil erosion                                             reduce soil erosion

cattle grazing                                                         hydroseeding

deforestation                                                         contour plowing

                                                                                planting vegetation

plant roots basically hold the top soil

together and stop soil erosion because

in such situation top soil is not removed

during flood but cattle grazing causes

soil erosion because cattle consume the

grasses and herbs and top soil is exposed.

same situation occurs because of

deforestation, the trees and plants are cut

down to expose top soil which causes soil

erosion