The electrons at the very end of both photosystems are eventually picked up by an electron carrier to become:
A) H2O.
B) ATP.
C) O2.
D) sugar.
E) NADPH.
E) NADPH
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Engulfing-phagocytic cells of innate immunity of vertebrates include _____
I) neutrophils II) macrophages III) dendritic cells IV) natural killer cells A) I and III B) II and IV C) I and IV D) I, II, and III E) I, II, III, and IV
A special capsule or chamber where a plant will make the first cells of the gametophyte generation is called a ____
a. vascular system b. protonema c. sporangium d. rhizome e. shoot system
The organisms that make up lichen:
a. benefit from each other b. infect human body surfaces c. increase the surface area of plant partners d. obtain sugar by fungal photosynthesis e. are plant parasites
Which of the following is not a property of B cells?
A. They require antigen presented with MHC proteins. B. They have receptors called immunoglobulins. C. There are low numbers circulating in the blood. D. They mature in the bone marrow. E. They produce plasma cells and memory cells.