Fluid inside vessel elements is being pulled upward primarily by ____
a. turgor pressure
b. evaporation and cohesion
c. osmotic gradients
d. pressure flow forces
e. active transport and osmosis
ANSWER: b
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Muscle cells make different proteins than nerve cells because they have different sequences of DNA
A. true B. false
Transduction is defined as the:
a. change of the bacterial genotypes through the exchange of DNA from one cell to another. b. internal change in the original nucleotide sequence of a gene or genes within an or-ganism's genome. c. process by which genetic elements such as plasmids and transposons excise from one genomic location and insert into another. d. mechanism that is mediated by viruses, by which DNA from two bacteria may come together in one cell, thus allowing for re-combination.
During replication, the direction of synthesis of new DNA from the leading and lagging strands is
A) 5' to 3' only. B) 3' to 5' only. C) from left to right only. D) both 5' to 3' and 3' to 5'. E) different, depending on whether the cell is prokaryotic or eukaryotic.
What would be an appropriate independent (treatment) variable for your experiment?
a. How much caffeine (from all sources) participants have consumed the day of the test b. How much of the energy drink participants report drinking in the last month c. How well the participants can concentrate during the test d. How much of the energy drink participants are instructed to drink right before the test Submit