Rising concentrations of carbon dioxide (CO2 ) in the atmosphere result in the oceans
A) becoming more acidic.
B) becoming more basic.
C) containing less dissolved oxygen.
D) containing less dissolved carbon dioxide.
Answer: A
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Which of the following does not contribute to the formation of dead zones?
A. ocean acidification B. fertilizers from agricultural runoff C. eutrophication D. decomposition E. All of the answer options contribute to the formation of dead zones.
Carbon, hydrogen, and oxygen are _____ for plants
a. macronutrients b. micronutrients c. trace elements d. required elements e. both macronutrients and required elements
The major microtubule-organizing center in most animal cells is the
a. kinetochore. b. centriole. c. centrosome. d. centromere. e. kinetosome.
Which of the following has a gametophyte dominant lifestyle?
a) whisk ferns b) liverworts c) conifers d) flowers e) horsetails