How is energy produced, stored, and transported through photosynthesis?
?The sun produces enormous quantities of energy-some of it in the form of visible light, a tiny portion of which strikes Earth. Only about 1 part in 2,000 of the light that reaches Earth's surface is captured by organisms, but that "small" input of energy powers nearly all the growth and activity of living things on Earth's surface Light energy from the sun is trapped by chlorophyll in organisms called primary producers and changed into chemical energy. The chemical energy is used to build simple carbohydrates and other organic molecules-food-that is then used by the primary producer or eaten by animals called consumers. Because light energy is used to synthesize molecules rich in stored energy, the process is called photosynthesis. The stored energy is released when the food is used for growth, repair, movement, reproduction, and the other functions of organisms.
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Which of the following region would you expect to have the highest levels of seawater salinity?
A) subtropical oceans B) polar oceans. C) equatorial oceans D) midlatitude oceans E) subarctic oceans
Magmas with the highest percentages (> 65%) of silica are called ____
A)mafic B)felsic C)intermediate D)ultramafic E)ultrafelsic
State-sponsored terrorism commonly includes all but
A) providing sanctuary for terrorists. B) providing supplies to terrorists. C) prohibiting women from attending school. D) actively sponsoring terrorist attacks.
Plates are known to be moving away from each other ________.
A. along transform faults B. across mid-ocean ridges C. across mountain ranges like the Himalayan Mountains D. across the stable interior of continents E. across subduction zones