Photosystem I initiates the electron transport chain that produces

A. water.
B. NADPH.
C. glucose.
D. NADH.
E. ATP.


B. NADPH.

Biology & Microbiology

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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).

Biology & Microbiology

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.

Biology & Microbiology

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

Biology & Microbiology

Fibrous joints

What will be an ideal response?

Biology & Microbiology