Answer: Grass can be found on every continent and in almost every habitat. It is a main source of food for many herbivores. The roots of grass grow down into the surface of the earth
The absolute threshold for human vision is the ability to see a candle from 30 miles away on a dark night
Answer: The neurotransmitter molecules then diffuse across the synaptic cleft where they can bind with receptor sites on the postsynaptic ending to influence the electrical response in the postsynaptic neuron.
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A sublimation is a type of phase transition, or a change in a state of matter, just like melting, freezing, and evaporation.
