Kinetic organisms can move themselves by all except:
a. flagella.
b. jet propulsion.
c. undulation of the body.
d. using turbulent mixing.
D
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Predict the consequence for an individual of a deleterious genetic mutation in the gene for TLR-4
What will be an ideal response?
The discovery of ____ suggested that nucleic acids likely existed prior to proteins
a. RNA b. ribozymes c. RNA polymerase d. peptide bonds e. endoplasmic reticulum
Which one of the following is typically removed from the blood by the tubular secretion process?
A) drugs such as marijuana and cocaine B) urea C) protein D) red blood cells E) water
Although most biologists believe that many species are becoming extinct each year because of the activities of humans, relatively few species actually appear on compiled lists of extinct species
What is one reason why so few species are listed as extinct? A) Many species are unknown to science and go extinct before they've been described. B) There really aren't that many species that have become extinct. C) Many species aren't listed because they aren't considered important. D) Only extinctions that are naturally caused are listed.