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Explanation and Application of Concepts:
1. Explain why a sea star that lives in the ocean (3.5 % salt) would not survive long if you took it home and put it in a bathtub filled with tap water (0.0 % salt).
2. During digestion, nutrients are absorbed across the wall of the small intestine into your blood stream. Explain why the long length (20 ft.) and numerous finger-like projections along the internal surface of the small intestine serve to optimize this important functions.
3. Just as you go to grab a head of lettuce at the local grocery store, the automatic misting system most large grocery chains have installed comes on. What are they spraying on the lettuce and why?
4. In the movie, Evolution, a giant "blob" - like organism consisting of a single cell grows to huge proportions (as big as a mountain). Although its plasma membrane is strong enough to contain its mass, based on what you learned today about factors affecting the rate of transport, could such a huge creature made up of only a single cell exist?Why or why not?
How does the heart produce enough pressure to provide blood for the brain considering gravity. If so, can you provide a mathematical way to determine how this is possible?
The half-life of potassium-40 is 1.3billion years. If a rockspecimen contained 12 milligrams of potassium-40 when it was formedand now contained 3milligrams of potassium-40, How old is therock? The half-life of carbon-14 is 5730 years. A fossil tha..
Pheromone traps can be used to control the leaf miner. Pheromones are smells that attract leaf miner males. Design an investigation to find out if a pheromone trap would help to control the leaf miner. Your method should include experimental detai..
As human age, the lens of the eye often hardens and the ciliary muscles will not bend it as readily as when we are young. How does this affect what can be seen?
Assuming that the distance between the corneal surface and the retina is 5 cm in an ostrich and that the refractive power of the ostrich's lens is 5 diopters.
Chemical Symbol For Elements And Elements In Human Body
1. can you design a way to test the hypothesis that asexual reproduction leads to a higher evolutionary fitness
Whilst playing lacrosse, Frank took a blow to the back of his neck. When she looked toward the stars but not directly at them, she could see them. Describe what was happening. Implicated in this is the fovea and its cells.
What percentage of the population are unaffected carriers?
Describe an experiment that would provide this answer, note the possible outcomes of the experiment, and explain the meaning or each possible outcomes.
Define blood pressure. Differentiate between systolic and diastolic blood pressure. What is "normal" blood pressure for a young adult?
What would happen to ampicillin resistant bacterial strains if they were streaked out onto plates containing amoxicillin? and why?
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