Which organs have a surface area to volume ratio that is specially optimized to absorb oxygen? (Check all that apply)
_____ Moth antennae
_____ Intestines
_____ Fish gills
_____ Neurons
_____ Frog skin
_____ Moth antennae
_____ Intestines
__X__ Fish gills
_____ Neurons
__X__ Frog skin
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What is the definition of energy?
A. The amount of order in a system B. The capacity to do work C. The movement of an object D. Particles moving in waves through a system
Carbon is introduced into the atmosphere by all of the following means EXCEPT
a. cellular respiration. b. volcanic eruptions. c. burning of fossil fuels. d. wind erosion. e. fire.
In a reptile egg, which membrane is analogous to a lung?
A) Amnion B) Allantois C) Yolk sac D) Blastocyst E) Chorion
Regarding acids, bases, and pH, which of these statements is true?
A.) substances that release protons when they dissolve in water are termed acids and result in a pH higher than 7 B.) substances that release protons when they dissolve in water are termed bases and result in a pH lower than 7 C.) substances that release protons when they dissolve in water are termed acids and result in a lower pH than 7 D.) substances that release protons when they dissolve in water are termed bases and result in a pH higher than 7