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Why do leaves change color?
Leave is the food factories of plants. During the spring and summer, leaves are actively making food and they are filled with chlorophyll, which gives green color.
As summer, ends and the days get shorter and cooler, food production stops and the leaves stop producing food. The chlorophyll disappears and they start to change into the yellows, oranges, and reds that we see in autumn.
Q. Despite having a great biodiversity why is the Amazon Rainforest under risk of desertification? The natural soil of the Amazon Rainforest isn't very fertile but it is enrich
A patient has total destruction of all of the beta-islet cells of the pancreas. Prior to receiving treatment, this patient will have A. high blood plasma levels of glucose.
Q. From the intestinal lumen through to the tissues - what is the route of nutrients after digestion? Monosaccharides, mineral salts, amino acids and water are absorbed by the
distinguishing charecters and classification of protozoa upto phyla
mitochondria?
A species has a diploid chromosome number of 56. Is it true or false that of the 28 chromosomes in an ovum, 14 are always paternal? Ignore the effects of crossing over. Justify you
Cohesiveness and Surface Tension Water flows freely, yet water molecules do not break apart. They cling together particularly to polar surfaces. Therefore, water can fill a tub
What is the effect of increased temperature on a non enzyme catalyzed reaction? What are the effects of increased temperature on an enzyme catalyzed reaction?
Why does the urinary volume increase when alcoholic beverages are ingested? Alcohol inhibits the ADH (antidiuretic hormone) secretion by the hypophysis. Low ADH decreases the t
Define Classification - Taxonomy Classification is the arrangement of organisms into groups having common characteristics. These groups are then arranged according to a system.
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