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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Stem cells that can differentiate into any type of tissue but cannot differentiate into a complete organism are ______________ cells
A. totipotent B. pluripotent C. unipotent D. None of the choices is correct.
Which of the following types of organisms uses inorganic molecules as an energy source?
a. photoautotrophs b. chemoautotrophs c. net primary producers d. net primary consumers
Comparative biochemistry is the science that examines similarities between molecules; the greater the difference between molecules that have the same function in two different species, the more distantly related the two species likely are
Indicate whether the statement is true or false
Some animals allow their body temperature to conform to the environment. What is the old term for these animals, and what is the newer preferred term?
A. Isotherms; poikilotherms B. Heterotherms; homeotherms C. Poikilotherms; ectotherms D. Homeotherms; endotherms E. Endotherms; homeostats