The energy that excites the photosystems is supplied by
A) electrons passing down the electron transport chain.
B) ATP.
C) photons.
D) NADPH.
Answer: C
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Which of these organisms is NOT included in the Eukarya?
a. heterotrophic bacteria b. heterotrophic protists c. fungi d. animals e. plants
Is the average ecological footprint getting larger or smaller globally? What will be an ideal response?
Four of the five answers listed below are lipids. Select the exception
a. triglyceride b. wax c. oil d. insulin e. steroid
Adaptive immunity is sometimes also called acquired immunity. Which of the following statements provides a basis for the alternative name?
A. Lymphocytes of the adaptive immune system are highly specific for a single epitope. B. Activated lymphocytes produce daughter cells that are identical in specificity and function. C. To become activated, lymphocytes require exposure to the epitope for which they are specific. D. Activated lymphocytes may persist for years in the body. E. Lymphocytes reactive to normal body components are removed.