What are trophic levels? Why is it better to eat organisms lower on the tropic pyramid?
· Trophic levels are the feeding hierarchy of organisms. There is a transfer of energy and nutrients in each level. Primary producers are the lowest level on the pyramid. They are the basis of life on earth. They are able to convert light energy into a chemical energy.
· Primary consumers eat the autotrophs, the primary producers. These are also labeled as herbivores. Each consumer level after this layer eats other consumers. Secondary consumers eat the herbivores while top consumers are predators, carnivores.
· Each trophic level is only able to acquire 10% of the energy in the trophic level below it. The energy can be lost through respiration and excretion.
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Liver disease predisposes a patient to hypothermia secondary to:
A) decreased glucagon uptake. B) inadequate glycogen stores. C) severe portal hypertension. D) increased bilirubin production.
In terms of long-term temperature increases in the atmosphere, which of the following is TRUE?
A) Average global temperature has risen 5°C in the 20th century. B) No changes have been observed in the 21st century. C) The greenhouse effect has never been shown to be real. D) Increases in greenhouse gases have been observed. E) It appears that we can readily curb the carbon dioxide problem.
Species abundance and diversity is generally higher on the deep ocean floor than in the part of the water column immediately above it
Indicate whether the statement is true or false
What spatial reorganization accompanied the rise of capitalism?
A) Suburbanization, as people moved from cities to suburbs B) Urbanization, as people moved from rural areas to cities C) Counter-urbanization, as governments encouraged people to move to undeveloped areas D) Establishment of growth-poles, where government established dispersed city centers E) Renewed emphasis on traditional village structure