Compatible solutes counteract the tendency of a cell to become
A) buoyant in high ionic strength environments.
B) hyperosmotic in low ionic strength environments.
C) dehydrated in high ionic strength environments.
D) viscous in low ionic strength environments.
Answer: C
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Four genes (A, B, C, D) are in the same chromosome. The distance between A and B is 4 map units, between A and C is 6 map units, between A and D is 1 map unit, between B and C is 2 map units, and between B and D is 5 map units
The correct order of genes in the chromosome is: A. D, C, B, A B. C, B, A, D C. B, A, C, D D. A, B, C, D E. B, D, A, C
Which of the following best describes the characteristics of the descending arm of the loop of Henle? (Select all correct choices.)
A. It is permeable to water. B. It actively transports electrolytes. C. It is impermeable to water. D. Its filtrate is mainly urea. E. Its filtrate becomes more and more concentrated.
The cell type that is found only in secondary tissue is
a. epidermis. b. sclereids. c. periderm cork cells. d. collenchyma. e. cuticle.
The oldest megafossils of vascular plants belong to the phylum Rhyniophyta
____________________ Indicate whether the statement is true or false.