Entamoeba histolytica is transmitted by which of the following? a. mosquitoes (bites) b. inhaling contaminated particles c. sexual intercourse d. cysts in feces

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?