Write the empirical formula for a carbohydrate. What will be an ideal response?
Answer: (CH2O)n;
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Suppose an antibody to bindin and sea urchin sperm were mixed together and the mixture was added to eggs. You predict that the antibody-treated sperm will _____
A) fertilize the eggs normally B) fertilize eggs from other species C) not bind to the egg membrane D) not be able to swim toward the egg
Which of the following has shown some effectiveness in treating a herpes infection?
A. AZT B. Protease inhibitors C. Acyclovir D. Cephalosporin
An organism's role within the structure and function of a particular community is its:a
habitat. b. trophic level. c. population. d. ecological niche. e. competition.
In accordance with the principle of parsimony, scientists
A) propose phylogenetic trees that minimize the number of evolutionary changes. B) adopt phylogenetic trees in which adaptations repeatedly arise, disappear, and reappear. C) construct phylogenetic trees with many small clades rather than with a few major clades. D) utilize the Linnaean system of nomenclature rather than common names.