36. An energy pyramid is shown. Red-
tailed hawks
Mexican free-tailed bats
Water boatmen
Algae
Which sentence best describes how energy flows through this pyramid?

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

What does the cell nucleus do or, how does it function?

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.