Most organisms accumulate synthetic organic chemicals in their bodies because these chemicals
A) are easily converted into molecules that are used to build parts of cells.
B) are a concentrated source of minerals, needed for cellular metabolism.
C) cannot be broken down by the natural metabolic mechanisms.
D) are a major source of calories when food is not available.
C
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A(n) ____________________ is a set of organisms within a defined area or volume that interact with one another and with nonliving matter in their environment.
Fill in the blank(s) with the appropriate word(s).
Which of the following is NOT true of shield volcanoes?
A) They include the Big Island of Hawaii. B) They are known for their violent, exploding eruptions of thick and gassy magma. C) They are the largest volcanoes on Earth. D) They have runny basaltic lava.
What are four of the many things that plate tectonics theory explains or whose explanations it has
influenced? What will be an ideal response?
Fronts
A) easily mix with each other. B) can cause uplift. C) are rarely associated with precipitation. D) usually separate air masses with similar temperature and pressure characteristics.