According to Indra Vasil, biotech crops are safe and well tested. Which of the following statements does he use to support his claims?
a. Biotech crops are linked to occasional environmental damage.
b. Biotech crops have never caused illness in humans or animals.
c. More than 1 million humans consumed biotech food between 1996 and 2006.
d. The growth rate of biotech crop farming has declined in recent years.
Answer: b. Biotech crops have never caused illness in humans or animals.
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The sunflower species Helianthus anomalus is thought to have been formed by hybridization between the sunflower species H. petiolaris and H. annuus because it contains a set of chromsomes from both parental species. H. anomalus is most likely an example of instantaneous speciation through
A. allopolyploidy. B. autopolyploidy. C. parthenogenesis. D. hybrid sterility. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about speciation through polyploidy? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
All but which are true about conotoxins?
a. They are potential sources of many new drugs of medical interest. b. They are made by snails inhabiting the South Pacific Ocean. c. One blocks pain as does morphine but is nonaddictive. d. They are not lethal to cone snail prey. e. They disrupt signals flowing through their nervous system.
The peptide bond is _____.
A. a hydrogen bond B. an ionic bond C. a covalent bond D. a van der Waals interaction E. none of the above
In 20-40% of men past puberty, the mumps virus can cause
a) orchitis. b) liver damage. c) fever. d) death.