An example of an anion is K+
__________________ Indicate whether the statement is true or false.
F, a cation
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Which type of communication mechanism travels the best in water?
a. Sound b. Smell c. Taste d. Sight e. All of these choices travel equally as well.
Blood is routed through the capillary beds through the action of __________ at the metarterioles
a. epithelium b. precapillary sphincters c. cartilage d. fibrous connective tissue e. skeletal muscle
________ dating uses ratios of potassium to argon and can be used to determine absolute age
Fill in the blank(s) with correct word
The Mesozoic era lasted from
A. 65 million years ago to 2 million years ago. B. 500 million years ago to 250 million years ago. C. 250 million years ago to 65 million years ago. D. 540 million years ago to 250 million years ago. E. one billion years ago to 500 million years ago.