Acetylene (C2H2) has a triple bond between the two carbons. So 3 pairs of electrons. Biomed is talking about ethylene (C2H4).
<span>A. to produce ATP and NADPH for the light-independent reactions
Remember, the purpose of photosynthesis is to provide energy for the plant to perform other chemical reactions during the process of growing. So now, let's take a look at the possible answers and see why they do or do not make sense.
A. to produce ATP and NADPH for the light-independent reactions
* Both of these are nice high energy compounds produced directly by photosynthesis. Unless we see a better option later, this looks like a good choice.
B. to convert carbon dioxide into water
* Does this provide energy to the plant? No it does not. So this is a bad choice.
C. to release oxygen into the atmosphere
* This is a happy side effect of the process for us mammals, but it's not the main purpose of photosynthesis and in fact doesn't provide energy to the plant. So wrong choice.
D. to break down glucose into pyruvic acid
* This does produce energy. But doesn't require light. So it has nothing to do with photosynthesis. Wrong choice.</span>
<span> One characteristic of a lagoon is often: concentrated salt.
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Answer:
Option C, Homeostasis
Explanation:
Homeostasis is a mechanism through which body maintain its state of stability/equilibrium. Thermoregulation is one of the mechanism of homeostasis by which body maintain its internal temperature. The average human body temperature is 98°F (37°C). When the external temperature increases, the body sweats or vassolidate to maintain the stable temperature.
When the external temperature decreases, the body undergo vasoconstriction or thermogenesis to main its average temperature.
Hence, option C is correct
