Which of the following is associated with mucosa-associated lymph tissue that produces IgA?
A) breast milk
B) red blood cells
C) blood serum
D) small intestine
Answer: A
Biology & Microbiology
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Which of the following occurs for the production of a pollen grain from a microspore mother cell?
a. mitosis only b. mitosis, then meiosis c. mitosis, then meiosis, then mitosis d. meiosis only e. meiosis, then mitosis
Biology & Microbiology
Chlorophyll a molecules absorb ____ light
a. orange, green and yellow b. orange, purple and red c. red and yellow d. orange and blue e. purple, orange, and yellow
Biology & Microbiology
The variable region of a light chain is indicated by
a. A. b. B. c. C. d. D. e. E.
Biology & Microbiology
Soils of the tundra are very __________ due to __________
a. old; lack of precipitation b. young; lack of precipitation c. old; glaciation d. young; glaciation e. thick; high precipitation
Biology & Microbiology