What do ribbon worms and flatworms have in common?
a. They are coelomates.
b. They are pseudocoelomates.
c. They are acoelomates.
d. They have two germ layers.
e. They have three germ layers.
C
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How are anoxygenic phototrophic microorganisms more physiologically diverse than oxygenic phototrophic microorganisms? Be specific in your answers and use examples to illustrate your conclusions
What will be an ideal response?
Eye color in Drosophila is an example of
A. Discontinuous, non-quantitative trait B. Discontinuous, quantitative trait C. Continuous, non-quantitative trait D. Continuous, quantitative trait
During a sequencing reaction, the researcher adds all the required components to the reaction, but
accidentally adds only one of the four dideoxynucleotides, the ddC. What kinds of products will be observed after this reaction is complete?
a. All fragments will end in A. b. All fragments will end in C. c. All fragments will end in G. d. All fragments will end in T. e. No fragments will be made.
Photosystems are mainly
a. a grouping of energy-trapping molecules. b. enzymes for splitting water. c. a cluster of ATP molecules. d. a sugar assembly site. e. assemblies of thylakoids