Briefly describe the kinds of trash, amount of trash, and economic impact of dumping trash in the ocean, using Florida as an example
What will be an ideal response?
Common trash includes tobacco products, glass, metal, and plastic. In Florida alone, 48% of the trash collected by volunteers was plastic; the remainder consisted of tobacco, glass, metal, and syringes. This brief clean-up saved the state of Florida $500,000.
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During protein synthesis in eukaryotes, which molecule passes from the nucleus to the cytoplasm and specifies the sequence of amino acids in the new polypeptide?
A. DNA B. RNA polymerase C. mRNA D. rRNA E. tRNA
The Lake Erie ecosystem was affected by humans because human activities
a. extracted resources without replacement. b. caused global warming. c. used the water without replacement. d. disrupted energy flow and the cycling of nutrients. e. extracted energy without replacement.
A trait that enhances an individual’s fitness is
called ___ trait.
a. an adaptive b. a fitness c. a selective d. an artificial e. a natural
An island is on the migration route of sea birds. This island also has abundant tree nesting birds that live on the island permanently and are not found on any other island. The tree nesting birds are more likely than the sea birds to be in Hardy-Weinberg equilibrium because:
A. of high immigration in the sea bird population. B. natural selection is stronger in the tree nesting birds. C. mating is random in the tree nesting birds. D. the sea bird population is larger. E. there are fewer mutations in the sea birds.