1. dodders are leafless and rootless parasitic plants that lack chlorophyll. the image above shows a dodder entwined around the stem of a tomato plant. predict the outcome of this interaction.
a) the dodder will convert the tomato plant into a woody plant.
b) the dodder will in the successful growth of the tomato plant.
c) the dodder will neither the tomato plant nor harm it.
d) the dodder will obtain organic nutrients, water and mineral salts from the tomato plant.

Look at the graphic, which describes the steps of analyzing a writing prompt.which word best completes the graphic? a. formatb. thesisc. idead. directive

The authors of the paper "fudging the numbers: distributing chocolate influences student evaluations of an undergraduate course"† carried out a study to see if events unrelated to an undergraduate course could affect student evaluations. students enrolled in statistics courses taught by the same instructor participated in the study. all students attended the same lectures and one of six discussion sections that met once a week. at the end of the course, the researchers chose three of the discussion sections to be the "chocolate group." students in these three sections were offered chocolate prior to having them fill out course evaluations. students in the other three sections were not offered chocolate. the researchers concluded that "overall, students offered chocolate gave more positive evaluations than students not offered chocolate." indicate whether the study is an observational study or an experiment. give a brief explanation for your choice.

How did the percentage of americans living on farms change between 1820 and 1850 a. it lowered as many americans were sold into slavery b. it rated the same as people stopped coming to america c. it grew as more people came to america d. it lowered as many americans went to work in factories