As you visit the high desert of southeastern Arizona, you come to a flowing stream that disappears into the sand. You notice that insects are flying up to the moist sand for a drink, but as the flow varies and waves of muddy water wash over the animals,
fine soil particles cover them and entomb them. The beginnings of what process have you just witnessed, and what might the next steps be?
What will be an ideal response?
Commonly, fossilization occurs in this way: decay of soft parts; impregnation with minerals; pressure from additional, overlaying layers; and formation of solid rock. For discovery, most fossils must be exposed through uplift and erosion.
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Which of the following statements is false regarding phagocytosis?
A) It can ingest large particles. B) It involves the projection of pseudopods. C) It is used by amoebae to ingest food. D) It is mediated by clathrin at the plasma membrane. E) It is used by macrophages and neutrophils to ingest bacteria.
A(n) ________ model of community structure assumes that the presence and absence of individual species in a community result from independent responses to the physical environment and interactions among species have no impact on community structure
Fill in the blank(s) with correct word
Which of the following structures is responsible for providing energy for the cell?
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One way to measure the antibody levels in the blood is by (neutralization/titration/turbidimetry) using agglutination tests
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