Anoxygenic photosynthesis typically results in the production of (oxygen/sulfur/ammonia) as a waste product.
Fill in the blank(s) with the appropriate word(s).
sulfur
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Which element functions BOTH as an enzyme cofactor and as a stabilizer of ribosomes and nucleic acids?
A) iron B) hydrogen C) zinc D) magnesium
The physical appearance and physiology of an organism, resulting from interactions of its genetic makeup and its environment, is its
(a) phenotype. (b) hybrid vigor. (c) dominance. (d) genotype.
Active transport in plant root cells requires that those cells have access to O2. Normally there is enough
O2 available in air pockets in the soil, but flooded soil has very little O2. Thus, unless they have special adaptations, plants in flooded soil effectively have no active transport in their roots. Which of the following should you expect to occur for trees without special adaptations to flooding after several days in flooded soil?
a. excess uptake of water and minerals in the xylem b. wilting of their leaves c. bursting of leaf cells due to excess water flow d. excess water pushed out at the margins of their leaves e. excess uptake of water and minerals in the xylem, and excess water pushed out at the margins of their leaves
All aerobic bacterial species have identical electron acceptors in their electron transport systems.
Answer the following statement true (T) or false (F)