Cancer cells
a. have an abnormal chromosome number.
b. are unable to attach to other cells.
c. divide to produce high densities of cells.
d. have malformed cytoskeletons.
e. fit all of these descriptions
E
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Aquatic arthropods that fragment organic particles and also eat bacteria and fungi on the surface of the litter are called
A) shredders. B) filtering collectors. C) gathering collectors. D) grazers.
Which of the following direct energy transfers is impossible in living systems?
A) light energy to chemical energy B) chemical energy to kinetic energy C) light energy to potential energy D) heat to light energy
The Gram-positive diplococcus ________ is commonly found in the pharynx but may invade the central nervous system inside cells where it survives after endocytosis
A) Streptococcus agalactiae B) Listeria monocytogenes C) Haemophilus influenzae D) Neisseria meningitidis E) Streptococcus pneumoniae
The (incubation/morbidity/prodromal) period is the time between infection and the occurrence of the first symptoms or signs of the disease.
Fill in the blank(s) with the appropriate word(s).