Mastication is the process of chemically reducing food bulk into smaller particles to facilitate swallowing.
Answer the following statement(s) true (T) or false (F)
Ans: False
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How are simulation results useful for informing decisions about the real world?
A. Because simulation models precisely replicate real-world biology, the results they produce accurately predict everything that will happen in the real world. B. Because simulation models capture the essential features of real-world biology, the results they produce always accurately predict basic outcomes in the real world. C. Because simulation models capture key features of real-world biology, the results they produce can lead to reasonable predictions and further hypotheses about the real world. D. Because simulation models are not necessarily based on real-world biology, they can generate predictions about species that aren't yet well studied in the real world.
Genes A and B are on the same chromosome. The genes have alleles A and B on one homologous chromosome, and the alleles a and b on its paired homolog. How could an individual with this allele arrangement produce a gamete with a chromosome containing the alleles Ab or aB?
A. mitosis B. fragmentation of the chromosome C. random fertilization D. independent assortment E. crossing-over
Four of the five characteristics listed below are
advantages to having an extensive membrane system. Select the exception. a. a platform for metabolic activities b. a simplified cellular organization c. an increased surface area for reactions d. a variety of organelles e. an increased surface to volume ratio
Which two factors determine the virulence of a particular pathogen?
a. its ability to cause damage to the host tissues b. the degree of immune system involvement in the infection c. the overall health of the infected person d. the number in the inoculating dose e. its ability to establish itself in the host