1) Stimuli for various sensations are first received by the

brain

spinal cord

senses

environment

2)
An example of a contact external sense is.

hunger

common sense

taste

sight

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?