The immunoglobulin monomer consists of
A.
four large chains.
B.
two heavy and two light chains.
C.
five light chains.
D.
three heavy and three light chains.
B
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Sediments that are composed of the remains of once living organisms are called:
a. cosmogenous. b. hydrogenous. c. inorganic.. d. biogenous. e. terrigenous.
Conidia are formed
A. asexually at the tips of special hyphae B. during sexual reproduction C. by all types of fungi except water molds D. only when it is windy and dry E. as a way to survive a harsh environment
Which statement concerning reproduction is FALSE?
(a). Hereditary information is passed on to the next generation. (b). Hereditary information is in the form of genes. (c). The offspring of asexual organisms have the same genes as the single parent. (d). The offspring of sexual organisms have roughly one half of the genes from each parent. (e). The offspring of multicellular organisms tend to be identical to the parent.
As an evolutionary biologist, you are asked to predict the chances of a taxon's future survival on a geological time scale excluding the possibility of a mass extinction. Which of the following factors could you use to in-form your prediction?
a. the estimate for background extinction rate b. the age of the taxon under question c. the taxon's average reproductive fitness during the past year d. the amount of evolutionary change the taxon experienced in the past e. A and B