Over time, cancerous cells typically lose the cell adhesion molecules embedded in their plasma membrane. Loss of
these molecules is best associated with which of the following traits of cancer cells?
a. increased rate of cell division
b. production of new proteins
c. angiogenesis
d. migration to new locations in the body
e. loss of chromosomes
ANSWER: d
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Where in a limb bone would trabeculae be found?
A. in the epiphysis B. in the diaphysis C. in the compact bone D. in the marrow cavity E. in the shaft
The cells surrounding milk-producing cells in the
female mammary gland contract shortly after the female hears the cry of an infant. This is an example of a. a response that is not a behavior. b. instinctive behavior. c. imprinting behavior. d. learned behavior. e. a time-dependent form of learning.
A cell that cannot form spindle fibers cannot ____
a. engage in energy production b. exchange gases across the plasma membrane c. perform mitosis nor meiosis d. perform DNA replication e. engage in protein synthesis
A taproot system originates from an enlarging:a
adventitious root. b. lateral root. c. root cap. d. root hair. e. radicle