Is the average ecological footprint getting larger or smaller globally? What will be an ideal response?
The average ecological footprint is growing. Most of the citizens of planet Earth live in developing
countries, and those citizens generally desire a lifestyle more like that of Americans. As their
ecological footprint goes up (and Americans generally refuse to lower those), the strain on the Earth’s
limited resources increases.
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Intracytoplasmic membrane systems housing vesicles known as chromatophores, which function in photosynthesis, are commonly found in
A) algae. B) green sulfur bacteria. C) most autotrophic organisms. D) purple phototrophic bacteria.
In a tropical forest some leaves are dark green
and some are light green. In a population of caterpillars, homozygous dominant dark green caterpillars thrive eating the green foliage; homozygous recessive light green caterpillars thrive eating light green foliage; heterozygous caterpillars of an intermediate color green are easily seen by birds and eaten, thus there frequency is far less than the dominants or recessives. This is an example of ___ selection.
a. directional b. stabilizing c. disruptive d. frequent e. mutational
Which of the following types of skin damage are the most superficial?
A) first-degree burns B) second-degree burns C) third-degree burns D) All of these have the same level of pain.
Which part of the pharynx is not matched to its correct location?
A. laryngopharynx: where the pharynx opens into the larynx B. nasopharynx: where the nasal cavities open at the top C. oropharynx: where the sinuses open