Which of the following organisms causes Yaws?
A. Treponema pallidum endemicum
B. Treponema pallidum pallidum
C. Treponema pallidum carateum
D. Treponema pallidum pertenue
Ans: D. Treponema pallidum pertenue
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Which of the following best describes the chemical equation for photosynthesis?
A) Carbon dioxide + Sugar + Energy = Oxygen + Water B) Oxygen + Water + Carbon dioxide = Sugar + Energy C) Water + Carbon dioxide + Energy = Sugar + Oxygen D) Oxygen + Sugar = Water + Carbon dioxide + Energy
Potassium ions are at a high concentration inside of cells including neurons
a. true b. false
Which events below are thought to allow p53 to direct a cell into apoptosis?
a) binding of p53 to proteins that directly trigger mitochondrial membrane permeabilization and release of apoptotic factors b) activation of the expression of the BAX gene c) all of the choices are correct d) binding of p53 to several members of the Bcl-2 family proteins
What is the best definition of an organ?
A. A single type of tissue B. A type of glandular tissue C. Two or more tissues working together to perform a specific task D. Muscle tissue that has differentiated from stem cells E. A collection of cells and interstitial fluid