The cecum, rectum, and anal canal make up what?
A) appendix
B) large intestine
C) anus
D) small intestine
B) large intestine
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Which of the following pairs is mismatched?
a. nucleolus-ribosomal RNA b. nucleus-DNA replication c. lysosome-protein synthesis d. cell membrane-lipid bilayer e. cytoskeleton-microtubules
Dr. Edward Jenner realized that cows have a disease called cowpox, which is like a disease that infects humans called smallpox; Jenner noticed that milkmaids whose hands were infected with cowpox were not contracting smallpox. Jenner infected a child with the pus from a cowpox blister, and found that the child did not contract smallpox. Which statement represents a supporting hypothesis?
A. The cowpox virus prevented the small pox virus from entering the child's immune system. B. the smallpox virus was so similar to the cowpox virus that the child's immune system ignored the smallpox virus C. The cowpox infection will prevent the child from being infected by the small pox virus. D. The cowpox infection will have no effect on the child's immunity to the small pox virus.
Which of the following bacterial pathogens is found in water distribution systems?
A) Enterobacter aerogenes B) Klebsiella pneumoniae C) Legionella pneumophila D) Vibrio cholerae
An example of a density-independent factor that affects a population's growth is
A. All of the answer choices are correct. B. frost killing all of your tomato plants. C. a fungus infecting your tomato plants. D. your tomato plants competing for water. E. insects eating your tomato plants.