During gene therapy, the genes that are thought to be the cause of a genetic disease or disorder are:

One does not belong why? ice, gold ,wood ,diamond and table salt

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

The excretory system,need answers for all: )