Four of the five practices listed below are approaches
to biodiversity conservation. Select the exception.
a. riparian ranching
b. strip logging
c. introduction of exotic species
d. research on species hot spots
e. study of indicator species
Answer: c
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Which of the following is a difference between chlorophyll a and chlorophyll b?
A) Chlorophyll a is a pigment, and chlorophyll b is the enzyme that transfers excited electrons from chlorophyll a to electron carriers of the thylakoid membrane. B) Chlorophyll a absorbs yellow light, and chlorophyll b absorbs green. C) Chlorophyll a contains magnesium in its ring structure, whereas chlorophyll b contains iron. D) Chlorophyll a and b absorb light energy at slightly different wavelengths.
Some human infants, especially those born prematurely, suffer serious respiratory failure because of _____
A) the sudden change from the uterine environment to the air B) the overproduction of surfactants C) the incomplete development of the lung surface D) lung collapse due to inadequate production of surfactant E) mutations in the genes involved in lung formation
Why are the components of the electron transport chain embedded in the inner mitochondrial membrane rather than floating freely in the cytoplasm of mitochondrial matrix?
A. To generate and maintain the proton gradient essential for ATP production. B. To separate the ATP from the ADP. C. Because electrons cannot float in the matrix. D. Because NADH cannot localize to the mitochondrial matrix.
What can you conclude from comparing the volume changes?
What will be an ideal response?