The primary function of humoral immunity (humoral response) is to _____
A) defend against fungi and protozoa
B) reject transplanted tissues
C) protect the body against cells that become cancerous
D) protect the body against extracellular pathogens
E) defend against bacteria and viruses that have already infected cells
Answer: D
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You may have heard of myosin, a molecule that makes up the bulk of skeletal muscle. It turns out there are many types of myosin, produced from many different genes
These genes are part of a huge superfamily of genes, whose products all bind actin, hydrolyze ATP, and transduce force. All eukaryotic cells contain at least one myosin product. What type of organic molecule is myosin? A. protein B. carbohydrate C. RNA D. DNA E. lipid
The bacterial cells can be distinguished from rice plant cells because bacterial cells do not
have __________.
a. cell walls b. membrane-bound organelles c. genetic material d. cell membranes
Many prokaryotes thrive in ________ environments, which lack oxygen
Fill in the blank(s) with correct word
Which of the following microorganisms causes symptoms most like tuberculosis?
A) Histoplasma B) Coccidioides C) Legionella D) Mycoplasma E) Influenza virus