The hypothalamus controls excretions from the pituitary gland. It causes the release of some hormones from the pituitary by direct nervous control, and others by secreting releasing and inhibiting factors that stimulate the pituitary to secrete hormones. Which best describes the hypothalamus?
energy per photon is e = h*c / λ
e = 6.63*10^-34 * 3*10^8 / 6*10^-7 j = 3.315*10^-19 j
nr. of photons = 10j / 3.315*10 = ^-19 j per photon = 3.02*10^19 photons
-toxic industrial chemicals are industrial chemicals that are manufactured, stored, transported, and used throughout the world. toxic industrial chemicals can be in the gas, liquid, or solid state.
-they can be chemical hazards (e.g., carcinogens, reproductive hazards, corrosives, or agents that affect the lungs or blood) or physical hazards (e.g., flammable, combustible, explosive, or reactive).