Vertebrate skeletons are composed exclusively of rigid elements
A. true
B. false
B
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What is the most common element in your body?
A. Carbon B. Sugar C. Water D. Oxygen
In the above figure, why does the curve sharply drop after approximately 45?C instead of mirroring the
slope of the line going from 0?40?C?
a. At high temperatures, the reactions proceed so quickly that enzymes are no longer helpful or required. b. This is true of all catalysts and is not due to any special features of enzymes. c. The kinetic energy of the reactants is so great that it destabilizes the enzyme and diminishes the enzyme's activity. d. The kinetic energy of the reactants is lower than that of the products, forcing a change in enzyme activity. e. The enzyme begins to denature above a certain temperature, eliminating all catalytic activity of the protein.
Matching. Choose the one most appropriate
statement. 1. ___ cyclic pathway of ATP formation 2. ___ noncyclic pathway of ATP formation 3. ___ carbon dioxide fixation 4. ___ the PGA to PGAL conversion 5. ___ the formation of glucose A. uses ribulose bisphosphate; produces PGA B. uses ATP and NADPH C. uses two PGAL D. produces ATP and NADPH E. uses an electron transfer chain to produce ATP
Which meiotic division(s) reduce(s) chromosome number (i.e., meiosis I, meiosis II, or both)? Explain your answer
What will be an ideal response?