Answer the following questions true (T) or false (F)
1. Microbial contamination always results in infection.
2. Influenza is an example of a chronic disease.
3. Biofilms provide an alternative means for bacteria to attach to surfaces within the body.
1. FALSE
2. FALSE
3. TRUE
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Agar is produced by
a. brown algae. b. red algae. c. phycobilins. d. brown and red algae. e. red algae and phycobilins
Which statement about intramembranous bone formation is true?
a. Growth in height is possible. b. Growth of skull bones is possible. c. Formation of blood cells is possible. d. Development of synovial joints for movement is possible. e. Production of lacunae with osteocytes occurs as a part of growth.
Which cells are important elements that comprise antibody-mediated immunity?
A) B cells B) cytotoxic T cells C) helper T cells D) macrophages
At a particular position along a nephron, the osmotic potential of the filtrate is 500 mOsm/L whereas the surrounding kidney's is 600 mOsm/L. Which of the following is a likely result?
a. Water will diffuse into the nephron by osmosis. b. Water will be pumped into the nephron by active transport. c. Water will diffuse out of the nephron by osmosis. d. Water will be pumped out of the nephron by active transport. e. There will be no net movement of water.