The electrons flowing through the electron transport chains in photosynthesis come from and end up being carried by _.
Examine this image, showing an electron transport chain in photosynthesis.
A. oxygen; NADPH
B. oxygen; water
C. NADPH; water
D. water; NADPH
E. NADPH; oxygen
D. water; NADPH
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The developmental protein Pumilio is evenly distributed throughout the cytoplasm of the fruit fly embryo but can only repress Hunchback in the posterior pole due to its association with:
A. Caudal. B. Bicoid. C. Hedgehog. D. Nanos.
In the case of John Moore, whose excised spleen was used by UCLA researchers to establish patented cells lines and ultimately commercially valuable products, the California Supreme Court ruled in 1990 that _____
a. patients are entitled to property rights over cells or tissues removed from the body and used to develop commercial products b. patients do not have property rights over cells or tissues removed from the body and used to develop commercial products c. human cells and cell lines cannot be patented d. organ donors cannot be compensated from the sale of human tissue e. recombinant DNA technology is harmful
When homologous chromosomes are at the equator of the cell, it is in
A. telophase. B. metaphase I. C. metaphase II. D. Any of these stages.
A multicellular organism that has a mouth and lives in an animal host is a(n)
a. Alga. b. Bacterium. c. Fungus. d. Helminth. e. Virus.