Biology, 22.09.2019 08:30 gungamer720
One effect of the pesticide ddt upon birds is to inhibit the production of the enzyme carbonic anhydrase, which controls calcium metabolism. it is believed that this causes eggshells to be thinner and weaker than normal and makes the eggs more prone to breakage. an experiment was conducted where 16 sparrow hawks were fed a mixture of 3 ppm dieldrin and 15 ppm ddt (a combination often found in contaminated prey). the first egg laid by each bird was measured, and the mean shell thickness was found to be 0.19 mm. a "normal" eggshell has a mean thickness of 0.2 mm. the null and alternative hypotheses are
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Biology, 21.06.2019 15:00
Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z
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Biology, 21.06.2019 19:00
Consider the diagram below, which represents components of the biosphere. what do the two arrows in the diagram most likely represent? a. radiation b. photosynthesis c. cellular respiration d. energy conversions will give to anyone who answers quickly
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Biology, 22.06.2019 01:00
Which part of cellular respiration must occur before any of the other steps can occur
Answers: 2
One effect of the pesticide ddt upon birds is to inhibit the production of the enzyme carbonic anhyd...
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