Fick's law of diffusion describes the factors that influence the diffusion of respiratory gases across biological membranes like gills and lungs
Diffusion rate = k × A × (P2 - P1)/D. Natural selection is LEAST likely to act upon which variable in Fick's law?
A) A
B) k
C) P2 - P1
D) D
Answer: B
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Mapping human disease genes to their position on the chromosome using genetic polymorphisms is called:
A. outgrouping. B. haplotyping. C. linkage analysis. D. synteny. E. comparative genomics.
The shorter urethra in females is one reason why urinary tract infections are more common in females than in males.
Answer the following statement true (T) or false (F)
Answer the following statements true (T) or false (F)
1. Hormones must bind a receptor to elicit a cell response, regardless of whether they operate locally or at long distances. 2. Auxin is a plant hormone that causes cells to shorten and allow plant growing tips to move toward the sun. 3. In terms of cell signaling, estrogen in animal cells works in a similar fashion as the plant hormone auxin via binding to intracellular receptors. 4. G proteins and Ras are activated when bound to GDP.
Microspores are indicated by
a. A. b. B. c. C. d. D. e. E.