What is the advantage of being a C4 or CAM plant? In what environments would these types of plants have a selective advantage, and why?
What will be an ideal response?
C4 and CAM plants do better in warm or hot, dry environments. They can keep their stomata closed longer without undergoing photorespiration, thus conserving water and still having enough CO2 available for the Calvin cycle.
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Small acid-soluble proteins (SASPs) protect DNA from ultraviolet light and are found in high numbers within
A) gram-positive Bacteria. B) endospores. C) inclusion bodies. D) gram-negative Bacteria.
The organism in the accompanying figure belongs to which group?
a. excavates b. alveolates c. stramenopiles d. green algae e. amoebozoans
Progressive changes in the fossil record are evidence for evolution because
A. they show gaps in the fossil record. B. they show descent with modification. C. they show evolutionary change at the level of the individual. D. they show inheritance of acquired characteristics.
Why is Line A a better fit for the data in this graph?
A. For Line A, the errors (difference between the actual Profits and point on the line) are uncorrelated with Price. B. For Line B, the average error (difference between the actual Profits and point on the line) is zero. C. Line B's intercept is smaller than Line A's intercept. D. For Line A, the average error (difference between the actual Profits and point on the line) is zero.