How to water cannabis properly... 1  Wait until the top of the growing medium is dry about an inch deep (up to your first knuckle - just use your finger to poke a hole in the soil and see if it feels dry). 2  Add water until you see at least 20% extra runoff water drain out the bottom of your pot. Go back to step 1.
A common example used to explain the Instinct Theory is that a human mother will attempt to provide comfort to a baby who has been crying all night and will not sleep until she sees that the baby is calm and asleep.
Evolution as a scientific theory. In non-scientific contexts, âtheoryâ usually means something like a guess (e.g., I have a theory aboutâ¦). But in its scientific sense, a theory is a tested and well-confirmed explanation for a set of observations. The observations explained by the theory of evolution come primarily from the fossil record, comparative morphology, biogeography, and now most importantly, genetics.