When conducting scientific research, any information that is found must be analyzed to determine its validity. joel is a firm believer that exposure to cold weather can cause the common cold. he conducts online research about this topic. of the excerpts below, which would be considered biased?
a. the flu and the common cold are caused by viruses.
b. viruses are passed by contact between people.
c. cold and flu season occurs when the weather is cold, so there must be a connection.
d. all of the above excerpts are biased.

Mutations associated with albinism affect proteins involved in synthesis

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone