Microbial growth in jellies is inhibited by the (acidic/hypotonic/hypertonic) condition of the food
What will be an ideal response?
hypertonic
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Consider the cladogram shown. Which pair of species shares the greatest number of derived characters (synapomorphies)?
A. 4 and 2
B. 5 and 4
C. 6 and 1
D. 6 and 2
E. 5 and 2
The trophic levels that are most seriously harmed by biomagnified pollutants are the lower grazers and producers
Indicate whether the statement is true or false
When two alleles of the same gene are
identical, the individual carrying those alleles is said to be
a. dominant. b. heterozygous. c. recessive. d. genotypical. e. homozygous
Which of the following produce the type III secretion system virulence factor?
A) E. coli O157:H7 B) Shigella C) Salmonella D) both E. coli O157:H7 and Salmonella E) E. coli O157:H7, Shigella and Salmonella