Which of these is a key feature of an experimental study?
a. the treatment in the experiment should be simple enough for each individual in the experimental group to understand.
b. the treatment in the experiment must vary for each individual in the experimental group.
c. the treatment in the experiment must be applied to each of the individuals in the experimental group.
d. the treatment in the experiment should be short so that each individual is tested quickly.

Utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must available hint(s)utah's great salt lake has an average salinity seven times higher than that of the oceans. very few multicellular organisms live in this harsh environment. an example is the brine shrimp, which must devote a large portion of its metabolic energy to osmoregulation. these brine shrimp must pump water back into their cells to counter its loss due to osmosisactively pump water back out of their cells to counter its inflow due to osmosissynthesize membranes that are impermeable to substances that upset osmotic balanceactively pump salt back out of their cells to counter its inflow due to osmosis

Blank liquids and gases exert a buoyant force on objects placed in them

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader