One important conclusion of Mendel's genetic studies with pea plants is
a. mutation is the only important factor in change.
b. genes controlling traits do not blend during inheritance, but are transmitted as
discrete entities.
c. the traits that an organism inherits are the average of the two alleles.
d. if particular traits do not appear in each generation, they are lost from the species.
e. once a trait becomes recessive, it is lost to the population forever
B
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________, a Danish naturalist, was the first to note that the angle between two adjacent faces of a crystal of quartz is always exactly the same.
A. McGeary B. Steno C. Einstein D. Carlson E. Plummer
Is the following transformation representative of a physical change or a chemical change?
A. chemical change because the atoms are connected differently B. physical change because of a change in phase C. physical change because a new material has been formed D. chemical change because of the formation of elements
Regarding air pollution disasters discussed in the text, this city or area suffered the most.
Services employment has replaced manufacturing employment in more developed countries primarily because
A) manufacturing is contained by location, production and consumption. B) services are constrained by location, production and consumption. C) manufacturing activities have largely shifted to low-cost developing countries. D) the services sector is so complex. E) of off-shore banking.