Why do species with large body sizes typically have lower population densities?
a. each large organism consumes more available resources
b. there are not enough individuals to grow the population
c. genetic diversity is low
d. small organisms have more potential mates
e. large organisms do not like living near one another
ANSWER: a
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Hemorrhagic and nonhemorrhagic fever diseases have a common feature of a high fever. These categories of diseases are distinguished by
A. the pattern of the fever, whether it is constant or varies with time. B. the viral load in the blood, specifically the viral titer. C. viral causes in hemorrhagic fevers and bacterial or protozoan causes in nonhemorrhagic fevers. D. the overall mortality rate, as hemorrhagic fevers have a much higher mortality rate. E. the integrity of the capillary endothelium and its ability to contain the blood.
The observable characteristics of an organism are called its ___________
A. Phenotype B. Genotype C. Dominance D. Genes E. None of the answers are correct
Bacteria in biofilms are often more difficult to treat with antibiotics than planktonic bacteria.
Answer the following statement true (T) or false (F)
The sequence of amino acids is the ____ structure of a protein
a. primary b. secondary c. tertiary d. quaternary e. isomeric