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ololo11 [35]
3 years ago
9

Which of the following is not involved in the fall coloration of leaves of deciduous trees?

Biology
1 answer:
Valentin [98]3 years ago
8 0

I believe the answer is D?

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Is tree trunks carbon sources
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Yes, trees are what give off oxygen and turn them it into carbon.

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Which of these blood samples most likely came from the left ventricle?
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Sample A most likely came from the left ventricle, as this is the portion of the heart that receives freshly oxygenated blood to be pumped to different parts of the body. Oxygenated blood is blood that has had oxygen bounded to it by hemoglobin (a pigment made of iron found in red blood cells). The oxidation of this blood by the iron in the hemoglobin gives it the RBC bright red look. This blood containing the bright RBCs in transported to the left ventricle from the lung, after which it is spread throughout the body. Hence, in normal conditions of the heart, the Sample A most likely came from the left ventricle.
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A person breaks a bone and has it set and put in a cast, but it does not heal. What would be the best thing for the doctor to in
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The osteoblasts, which should have been building the new bone

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Bones are the one of the types of connective tissues and have hard extracellular matrix. Osteoblasts are the cells that serve in formation of extracellular matrix of bones as these cells secrete collagen fibers and inorganic salts present in the matrix of bone. Hence, if a bone is not able to heal after fracture, osteoblast cells should be checked for their activity.

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Effect of water pollution​
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HOPE IT HELPS

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