What types of data can be used to construct phylogenies such as the one above?
A. molecular data
B. fossil evidence
C. anatomical, physiological and
developmental studies of extant species
D. molecular data, fossil evidence and
anatomical, physiological and developmental
studies of extant species
E. None of the answers given above are
correct.
D
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Recall the Bartel lab group experiment to create a ribozyme from scratch. If they had created exact copies of each ribozyme (rather than creating copies with a few differences), the ribozymes would have _____
A) become more efficient with each round of selection B) stayed the same with each round of selection C) become less efficient with each round of selection D) stopped catalyzing reactions after just a few rounds of selection
Maintaining the volume and composition of body fluids is the direct responsibility of which system?
a. integumentary b. immune c. digestive d. urinary e. circulatory
The word prokaryotic means
a. having many nuclei. b. having two nuclei c. before the nucleus. d. having a membrane-bound nucleus. e. having a nucleus with no DNA.
A person has a genetic disease that prevents the phospholipids in the plasma membrane of the white blood cells from
freely fusing with the other membranes within the cell. How would this disease affect phagocytosis? a. Endocytosis would not occur. b. Lysosomes would not be formed. c. Facilitated diffusion would not occur. d. Lysosomes would be formed lacking hydrolytic enzymes. e. The phagocytic vacuole would not fuse with the lysosome.