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USABO Hormones Questions and Verified Answers | Passed | A+

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USABO semi-final part A&B Questions and Answers 100% Correct. 1) The recent SARS virus is a: a) Lentivirus b) Coronavirus c) Egtved virus d) Baculovirus e) Retrovirus 2) Which of the following cell organelles is typically identified by its sedimentation coefficient? a) Golgi apparatus b) Mitochondria c) Nucleus d) Nucleolus e) Ribosome 3) Timber companies plant trees right after clear-cutting. Which of the following ecological and/or evolutionary processes would, in principle, take...

USABO Hormones

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USABO 2024 Mass Deck Latest Update 100% Correct Mycorrhizae Symbiotic organisms (aka symbionts) with plants that live on their roots, helping the plant gain nutrients Nerve net A nervous system that moves neural signals in all directions from the stimuli, found in invertebrates like hydra Malpighian tubules Tubes in an insect that help with osmoregulation and excretion; they move waste into the main gut for removal. "Kidneys" of arthropods, they absorb ammonium and convert it i...

USABO Open Exam 2006 Questions And Answers Insulin injected by diabetics to control blood sugar levels is derived from bacteria whose DNA has been modified by the addition of the human gene for insulin, which is then produced by the prokaryotes. This is an example of: A. acid therapy. B. cloning. C. genetic engineering. D. gene therapy. E. pluripotency. - ANS C. genetic engineering. Isolated RNA molecules are generally less stable than DNA at physiological pH because: A. RNA h...

USABO- Hormones

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Biology USABO Exam Questions with Correct Answers The recent SARS virus is a: - Answer-Coronavirus Which of the following cell organelles is typically identified by its sedimentation coefficient? - Answer-Ribosome Timber companies plant trees right after clear-cutting. Which of the following ecological and/or evolutionary processes would, in principle, take too long for timber companies to wait for, if nature just took its course? - Answer-Succession Bird migration is probably initi...