Approximately how many neurons are in the human brain?
a. 1,000
b. 10,000
c. 100,000
d. 100,000,000
e. 100,000,000,000
E
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The mechanism for the spread of long interspersed nuclear elements (LINEs) involves some unique features, including _____
A) translation in the cytoplasm of an mRNA that was synthesized in the nucleus B) the nuclear localization of RNA polymerase C) the transport of mRNA from the cytoplasm to the nucleus D) the use of an enzyme that cuts DNA E) the use of RNA polymerase to transcribe an mRNA
What is a unifying feature of all animals, but is not seen outside of the animal kingdom?
A. They are terrestrial or secondarily aquatic. B. They are unicellular. C. They have immobile gametes. D. The nature of their small subunit rRNA gene sequences is different. E. They have a cell wall.
Which of the following plants are among those
that contributed to the formation of coal?
a. horsetails b. peat mosses c. conifers d. angiosperm trees e. more than one of these
The graphs below show data relating to seasonal differences in the amount of pigment molecules present in leaves and how this is related to leaves changing colors
a) the season in which the measurements were taken b) the difference in pigment between spring and fall c) the measure of the amount of each pigment molecule presents in leaves d) time at which the amount of pigment was measured e) the wavelengths of light reflected by each photosynthetic pigment