Photosynthetic plants absorb and utilize blue and red light. The part of the light spectrum they don't use is green. As it isn't absorbed, it's reflected back and that's what we see.
Red light is used for vegetative growth of the plant; blue light is used for reproductive growth.
Okay: Question 2: I don't believe it arose once. I believe that there was probably false steps and false starts. Evolution is a blindwatchmaker. It is simply a force; environment is what chooses the path. Therefore, I believe it is possible at the basis of that theory, that life might have arisen more than once. Even life starting flukes have a low probability of happening more than once. But Fortey is an exceptionally intelligent man so weigh my opinion very very very lightly in reference to his.
Question 1: I've had this in biology and cell biology before, but at this moment in time, I can't remember the single reason why. I'll see if I can find my notes.
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Date: 2004-11-07 04:56 am (UTC)Photosynthetic plants absorb and utilize blue and red light. The part of the light spectrum they don't use is green. As it isn't absorbed, it's reflected back and that's what we see.
Red light is used for vegetative growth of the plant; blue light is used for reproductive growth.
Okay: Question 2: I don't believe it arose once. I believe that there was probably false steps and false starts. Evolution is a blindwatchmaker. It is simply a force; environment is what chooses the path. Therefore, I believe it is possible at the basis of that theory, that life might have arisen more than once. Even life starting flukes have a low probability of happening more than once. But Fortey is an exceptionally intelligent man so weigh my opinion very very very lightly in reference to his.
Question 1: I've had this in biology and cell biology before, but at this moment in time, I can't remember the single reason why. I'll see if I can find my notes.