The food products most commonly contaminated with Salmonella strains are
A. meat and seafood.
B. milk and cheese.
C. fruit and vegetables.
D. eggs and poultry
D.
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Progression through the phases of the cell cycle is regulated by fluctuating concentrations of ____
a. microtubules b. actin c. cyclins d. cyclin-dependent kinases e. histones
Which of the following observations led to Darwin's major inferences?
a. Members of a population vary in their heritable traits b. Body parts that are not used deteriorate over time c. Organisms only go extinct when catastrophes occur d. Although organisms can produce huge numbers of offspring, many of these offspring do not survive e. The first and fourth answers are correct
A theoretical concept that is used to understand how and why certain organisms can be sorted into discrete taxonomic groups is known as the ________.
A. species concept B. phylogenetic concept C. endosymbiotic theory D. genotypic concept
Malaria is caused by Plasmodium falciparum, a non-motile protist that contains a cluster of microtubules at one end of the cell. Once injected into the bloodstream, these microtubules are used to attach to red blood cells. Plasmodium falciparum is which of the following?
A. a protozoan B. an alga C. a slime mold D. a diatom E. an apicomplexan