Which of the following is considered “insensible” water loss?
a. urine excretion
b. evaporation from lungs
c. metabolic reactions
d. sweating
e. elimination of feces
ANSWER: b
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Due to the pumping action of the electron transport chain, protons have a high concentration in the _____ and a low concentration in the _____
A. intermembrane space; mitochondrial matrix B. intermembrane space; cytoplasm C. mitochondrial matrix; intermembrane space D. mitochondrial matrix; cytoplasm E. mitochondrial matrix; extracellular fluid
Which type of eye can form an image?
A. eyecup B. compound eye C. single-lens eye D. compound eye and single-lens eye.
In mammalian eyes, light must pass through neural cells to reach the photoreceptors in the retina
Indicate whether the statement is true or false.
Based on Figure 18-11, the two present day continents that should have the most closely related plant
and animal species are:a.
North and South America.
b. Africa and Australia.
c. Africa and South America.
d. Australia and India.
e. Eurasia and India