Eustachian tube connects the middle ear and which of the following?
Answer: Nasopharynx
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If a scientist found very high concentrations of organic biomarkers deep inside a 3.9 billion year old meteorite, how would this effect the explanation of the origins of life on Earth?
A. This would prove the extra-terrestrial origin of life. B. This would provide evidence for the extra-terrestrial origin of life. C. This would disprove the terrestrial origin of life. D. This would provide evidence for the uniqueness of life on earth. 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 the role of meteorites in the origin of life? 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?
Which of the following statements is true?
a) Genetic engineering offers no benefits to farmers. b) A genetically modified organism (GMO) is one that has lost one or more genes naturally. c) Scientist have been able to successfully produce medicines by genetic engineering.
The genes you inherited from your parents are an example of
A. speciation. B. evolution. C. adaptive radiation. D. gene flow.
Poliovirus is ingested and gains access to tissues by which portal of entry?
a. Skin b. Parenteral c. Mucous membranes d. All of these e. None of these