Hydrogin is gin and water. Three kinds of blood vessels are arteries, vanes and caterpillars. Blood flows down one leg and up the other. Respiration is composed of two acts, first inspiration, and then expectoration. The moon is a planet just like the earth, only it is even deader.
Artifical insemination is when the farmer does it to the cow instead of the bull.
Dew is formed on leaves when the sun shines down on them and makes them perspire. A super saturated solution is one that holds more than it can hold. Mushrooms always grow in damp places and so they look like umbrellas. The pistol of a flower is its only protections agenst insects. The skeleton is what is left after the insides have been taken out and the outsides have ben taken off.