All of the different species of fish in the Monterey Bay aquarium would represent what ecological level?

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• Choose each statement that is scientific. A.) The opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on Earth. B.) The universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. C.) Human life is more valuable than other forms of life on Earth because humans are more intelligent than other organisms. D.) Ocean tides are caused by the uneven gravitational pulls of the Moon and Sun on different parts of Earth.
• Which of these is a tRNA? The process of translation. Each letter marks a definite structure. Letter A marks a thread, to which the ribosome is attached. This thread is the template of translation. Letter B marks a structure bonded to Gly and located inside structure C. Letter C marks a structure, in which translation happens. Letter D marks a thread, the product of translation. Letter E marks constituent elements of the forming thread.
• 11. When does the nuclear membrane dissolve in mitosis? 12. Human cells contain 46 chromosomes before mitosis. How many do they have after mitosis? 13. During anaphase, what structures are attached to the centromeres? 14. Describe the function of the centriole in animal cells. 15. When do chromosomes become visible in mitosis? 16. Chromatids move to opposite poles of a cell during anaphase and telophase. What appears to be the mechanism for the pulling action? 17. How can you tell whether cells in mitosis are animal cells or plant cells? 18. What are the main events that occur during interphase?
• Which of these is a sulfate: beryl, garnet, silver, or gypsum?
• A good night's sleep improves recall of the previous day's events by facilitating the transfer of memories from the
• Explain how a mutation causing resistance to pyrethrins and pyrethroids would spread through a population of bed bugs that are being treated with the pesticide. A) In a population of bed bugs, variation exists. Some variation provides resistance to the pesticides. Those bed bugs survive to reproduce, passing the resistance on to offspring. Eliminate B) Mutations happen randomly to change the gene pool of a population. The mutations are favored when a population of organisms winds up in an environment in which the mutations happen to be useful. C) When a population of insects, like bed bugs, is subjected to pesticides, some of the bed bugs alter their genetic make-up and they are able to survive. They then pass the new genes on to offspring. D) In any population of organisms, sexual reproduction provides for variation in the gene pool. Such variation allows some insects to be resistant to pesticides. When sexual reproduction occurs again, the resistance is passed to offspring.
• Without the discovery of magnetic reversals recorded on the ocean floor, scientists A. could not confirm the usefulness of sonar B. could destroy the hypothasis of continental drift C. could not provide a mechanism for moving continents D. could explain how the seafloor was being destroyed
• Which phenomenon leads to the formation of metamorphic rocks? A. cooling of magma B. deposition of sediments C. heat and pressure D. melting of rocks E. minerals dissolving in water
• Two pure lines of four-o'clock plants, one with red flowers and the other with white flowers, are crossed. The F1 progeny all are pink. When these are selfed, the F2 progeny are 25 percent red flowers, 50 percent pink flowers, and 25 percent white flowers. This is an example of____________.