PRACTICE IN IDENTIFYING VARIABLES Identify the independent variable and dependent variable(s) in the following
experiments.
1. A researcher was interested in the effects of reward on intrinsic motivation. Some
children were told that they would be given a special award for drawing with magic
markers (an activity they already enjoyed) Other children were simply asked to draw
with the magic markers. One week later, the children were unobtrusively observed for
how much time they spent drawing with the markers. The children who expected and
received a reward for drawing with the markers were less likely to draw with them later

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

a- all cells come from pre-existing cells

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.