Photon energy is proportional to which of the following? period of the light wave
frequency of the light wave
speed of the light wave
color of the light wave

PLZ ANSWER 20 POINTS

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants. d. selecting individuals at random.

What must be true for natural selection to heppen

Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.