Consider an early reef-builder of the Cambrian, the archaeocyathid. Using correct terminology
for marine ecosystems, classify this organism on where it lives, how it gets around, and how it
feeds. How does the lifestyle of archaeocyrathids compare with that of Cambrian trilobites? What will be an ideal response?
Archaeocyathids are benthic, sessile, suspension feeders. Trilobites, although benthic, were
mobile sediment feeders.
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The sodium-potassium pump provides an example of
A) diffusion. B) facilitated diffusion. C) active transport. D) endocytosis.
Evidence of reversals in the Earth's magnetic field is found along areas of seafloor spreading
Indicate whether the statement is true or false
Which of the following has been linked to the coldest years of record over the past 200 years?
a. levels of carbon dioxide b. El Niño c. the sunspot cycle d. volcanic activity
From the text's description, it is clear that sinkholes conflict with urban land uses in ________
A) New York City B) Florida C) Iowa D) Los Angeles E) Chicago