Photosystem I initiates the electron transport chain that produces
A. water.
B. NADPH.
C. glucose.
D. NADH.
E. ATP.
B. NADPH.
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The following are steps in using SSU rRNA molecules to develop phylogenetic trees. Place these steps in the correct order. _____ Count the number of nucleotide differences between each pair of sequences and calculate the evolutionary distance._____ Input data into computer and use appropriate software to construct a phylogenetic tree._____ Align nucleotide sequences to compare._____ Isolate DNA from cells of each organism being tested._____ Amplify the DNA of the SSU rRNA genes of each organism using polymerase chain reaction._____ Determine the nucleotide sequence of the SSU rRNA genes of each organism.
Fill in the blank(s) with the appropriate word(s).
Small extensions of the muscle cell's plasma membrane that connect with myofibrils are called
a. T tubules. b. cross-bridges. c. sarcoplasmic reticulum. d. neuromuscular junctions. e. neurotransmitters.
Farmland that is under regular and continued tillage will not ____
a. undergo succession b. produce a climax community c. experience competition d. suffer from the effects of disturbance e. develop species diversity
Fibrous joints
What will be an ideal response?