20 pts

a group of middle school students were given a short course in speed-reading. the instructor was curious if a monetary incentive would influence performance on a reading test taken at the end of the course. half the students were offered $5 for obtaining a certain level of performance on the test, the other half were not offered money.
what is the control group?
what is the independent variable?
what is the dependent variable?

The control group is..$0 group(no monetary initiative)
the independent variable is the monetary incentive ($5 or no money)
the dependent variable is the performance on the reading test 

The control group is the students sans the money. The independent variable would be the 5$. The dependent variable is students receiving the money.

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.

What is the difference between cytokinesis in plant and animal cells? animal cells dived by a cleavage furrow. plant cells divide by a cell plate that eventually becomes the cell wall. cytoplasm and cell membranes are necessary for cytokinesis in both plant and animals.