Explain the importance of information transfer in living systems. Include three specific examples. What will be an ideal response?
Information transfer occurs when 1) traits are passed to the next generation, 2) when one
individual communicates with another, 3) when one portion of a cell communicates with
another portion, and 4) when one part of a multicellular organism communicates with another
part.
For example, in sexual reproduction the genetic information from the parents is transmitted to
the offspring. The information in those genes is then used to determine what proteins are
made and consequently how that cell develops. Lastly, a cell may produce a hormone or a
neurotransmitter that provides information of various kinds to other cells.
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You are surveying biodiversity on a new island chain. You have counted the number of bat species on one island already. The next island is smaller and farther from the mainland than the one you have just surveyed
According to the theory of island biogeography, the total number of its bat species should be ____ than on the current island because the rate of immigration to the new island should be ____ and the rate of extinction should be ____ . Refer to Figure 46.17 in your text for help. Fill in the blank with the appropriate word.
The primary difference between individual nucleated cells in a developing zygote is the ____
a. genetic code of each cell b. differential expression of housekeeping genes c. differential expression of regulated genes d. number of chromosomes present in the nucleus e. presence or absence of gene regulators
A behavior is defined as adaptive if it _____
a. varies among individuals of a population b. occurs without prior learning c. increases an individual's reproductive success d. is widespread across a species
Which of the following is not a gas-forming microbe used to make bread?
A. Coliform bacteria B. Heterofermentative lactic acid bacteria C. Clostridium perfringens D. Streptococcus lactis E. Saccharomyces cerevisiae