B! The strongest characteristics will survive when the weak ones won't
Greater ability to recover after natural disasters and greater variety of food sources.
They give us the energy we need to move and to speak and to live they do that for all the organisms on earth
Answer:
According to the science magazine Scientific American, the sunset is reddish because, when the sun is setting, the light that reaches you has had to go through lots more atmosphere than when the sun is overhead, hence the only colour light that is not scattered away is the long wavelength light, the red.
Answer:
Stimulation of thoracic or lumbar spinal regions; impulse reaches chain ganglion; acetylcholine release
Explanation: