Which statements describe the use of gamma rays to treat cancer? check all that apply.
gamma rays have low energy and a source must be placed in the body.
gamma rays are absorbed by only the cancer cells.
high-energy gamma rays are directed at a tumor from outside of the body.
gamma rays kill cancer cells in a tumor.
gamma rays are applied to a large area of the body.

The velocity of car is 80.0 miles per hour. what is the velocity of car in meters per second? (1 km -0.621 miles) m/s

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

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