Because measuring the amount of energy in each trophic level in an ecosystem is difficult, scientists often collectdata, which tells them the weight of living material at each trophic level. By weighing all the producers, herbivores, and carnivores in an ecosystem, a 90 percent loss of energy from one trophic level to the next has been observed.
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Biology, 22.06.2019 11:30
In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48
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Biology, 22.06.2019 15:00
When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?
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Biology, 22.06.2019 16:00
In sheep, the allele for belly fur (a) is dominant to the allele for no belly fur (a). a mother with the genotype aa and a father with the genotype aa produce an offspring.
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Because measuring the amount of energy in each trophic level in an ecosystem is difficult, scientist...
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