Answer:
Primary consumers are animals that eat primary producers; they are also called herbivores (plant-eaters)
Explanation:
The products of photosynthesis, oxygen and glucose, are the reactants of cellular respiration. The products of cellular respiration, carbon dioxide and water, are the reactants of photosynthesis.
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The answer is C. Summer solstice. The sun is at its northernmost when it passes the first solstice after the vernal equinox on June 21 or 22, which is in the summer time.
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Answer:
A) the diameter of the helix
Explanation:
This is was measured during the 3D structure of DNA proposed by James Waston and Francis Crick in 1953. The x-ray diffraction showed crossed shape of the X-ray films.The DNA appeared as two double strands structure.
The diameter of the DNA double helix is 20 Armstrong.
This diameter is constant because of the complementary pairing of bases.( purines with pyrimidines)