Scientists determined that the LD50 for a particular chemical toxin was a dosage level of 175 mg/kg of body mass for a
test population of rats. Assuming that the toxic effects
observed in rats is the same for similar mammals of a larger
size, what dosage level would be needed to kill 50% of the
population of mammals who typically have a body mass of
22 kg.

What is kwashiorkor and how does it affect a person and their health?

Select the statement that is not true about the hubble telescope: a. it orbits above the earth, avoiding the light distortion caused by our atmosphere. b. it is mounted high on a hawaiian mountaintop to provide stable images. c. it has allowed scientists to see the formation of far-away stars and solar systems, leadin some certainty about the history of our own solar system. d. it has documented the destruction of far-away stars and galaxies, leading to some certa the theories of the life cycles of stars.

With my drivers ed in the decision-making cycle, to decide means to a. carry out an action that has been decided b. estimate if an identified hazard will affect the driver c. pick a course of action d. pick a scanning routine