____ is the best studied species of bacteria
a. Rhizobium sp.
b. Prevotella copri
c. E. coli
d. G. lamblia
e. Agrobacterium sp.
ANSWER: c
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Parasitic helminths have a highly developed ________ system to enhance host transmission.
A. nervous B. reproductive C. respiratory D. digestive E. muscular
Monocots and eudicots differ in how xylem and
phloem are distributed in ground tissue, in the number of petals in flowers, and in the number of __________. Fill in the blank(s) with the appropriate word(s).
In the lysogenic cycle of bacteriophage ?,
a. a repressor, cI, blocks the lytic cycle. b. the bacteriophage carries DNA between bacterial cells. c. both early and late viral genes are transcribed. d. the viral genome is made into RNA, which stays in the host cell. e. many new viruses are made immediately, regardless of host health.
Protection, absorbtion, secretion of digestive enzymes
A. Pseudostratified columnar B. Simple columnar C. Simple cuboidal D. Simple squamous E. Stratified squamous F. Transitional