The most structurally complex animal phylum is the ____________, in which members possess a stiffening
____________, a tubular dorsal nervous system. Fill in the blank(s) with the appropriate word(s).
Chordata; notochord
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Consequences of sediment pollution include more rapid infilling of reservoirs and clogging of stream channels.
Answer the following statement true (T) or false (F)
Headquarters of large corporations are clustered in world cities, and shares of these corporations are bought and sold on the stock exchanges located in world cities
Indicate whether the statement is true or false.
Calcium and sodium ions make up much of the ________ of streams
A) dissolved load B) suspended load C) bed load D) sediment
A body or rock of considerable thickness with characteristics that distinguish it from adjacent rock units is called a(n)
A. formation B. contact C. outcrop D. bedding plane