Select all of the following that represent examples of taxis.
A. Mammalian spermatozoa are guided toward an oocyte by a temperature gradient between the cooler sperm storage site and the fertilization site.
B. In the Northern Hemisphere, Aquaspirillum bacteria burrow towards the magnetic north pole (the geographical south pole).
C. Human body lice change direction more frequently as the temperature of their immediate environment increases.
D. Cyanobacteria filaments in an intertidal environment migrate upward if salinity falls below 15% and downward if it rises above 15%.
Answer: D
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The MMR vaccine is used to protect against measles, mumps, and rubella
Indicate whether this statement is TRUE or FALSE.
Answer the following statements true (T) or false (F)
1. The Na+/K+-ATPase pump is a ligand-gated ion channel. 2. Ion gradients across the membrane drive numerous cellular functions. 3. The ability of bread to rise is mainly a function of the CO2 produced anaerobically during oxidative phosphorylation. 4. The aerobic breakdown of glucose yields 34 to 38 ATP, while the anaerobic breakdown of glucose yields 20 ATP.
Complementation studies can be performed in bacteria by
A) gene targeting. B) forming merodiploids with one copy of a bacterial gene on an F? plasmid. C) forming merodiploids with two copies of a bacterial gene on F? plasmids. D) forming diploids with two copies of the bacterial chromosome.
A proteome is an organism's full array of expressed proteins, and proteomics is the study of those proteins and the functions they mediate.
Answer the following statement true (T) or false (F)