Figure 39.9
?
Use the figure above to answer the following question.
The structure designated by the letter "B" in the above figure is called the ____.
A. pyloric sphincter
B. esophagus
C. small intestine
D. duodenum
E. appendix
Answer: A
Biology & Microbiology
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Cilia are exhibited by certain ________.
A. bacteria B. viruses C. protozoa D. algae E. fungi
Biology & Microbiology
Invertebrates
a. do not have a vertebral column. b. have a vertebral column. c. are all members of the phylum Chordata. d. do not include animals that are members of the phylum Chordata.
Biology & Microbiology
Autosomal aneuploidies arise by:
a. chromosome breakage and rejoining. b. nondisjunction. c. errors in crossing-over. d. mistakes in chromosome replication. e. mutations.
Biology & Microbiology
coli 0157:H7 characteristics include
What will be an ideal response?
Biology & Microbiology