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1) Why must particles be extremely small to demonstrate brownian movement?
2) What is the difference between molecular motion and diffusion?
3) If you immerse your hand in distilled water for 15 minutes, will you cells lyse? why or why not?
4) How do cells such as algae and protists avoid lysis in fresh water?
how to Calculate the initial velocity. An enzyme with a Km of 0.36 mM was assayed using substrate concentrations of 3 x 10E-7 M, 9.5 x 10E-5 M, 1.5 x 10E-4, 1.16x10E-3, 3 x 10E-3 M, 0.01 M, 0.08 M.
What is a population? What is a species? You are conducting fieldwork and discover two populations of squirrels living on opposite sides of a lake. How would you design a study to determine, without disturbing the squirrels, whether these two populat..
Explain how cells meet their energy requirements through the process of fermentation in absence of oxygen along with the examples.
Those cars are fueled and built with oil from Nigeria, Iraq, Louisiana and Alaska, places laid to misuse by unfettered oil extraction. Imagine you have done a gram stain and determined what antibiotic to use to kill the bacterium, if you expose th..
What is the circumference of their spherical world if they see the similar star on their meridian at altitudes of 23 degrees and 47 degrees respectively, and at the exact same time.
Within the two groups defined by bone mass, smaller skeletons have bones with evidence of epiphyseal plates, but the larger skeletons have only a thin line where the epiphyseal plates should be. Give the age group and gender of the four individuals i..
The disease beriberi, which results from a dietary deficiency of vitamin B1 (Thiamine) is characterized by neurological and cardiac symptoms, as well as increased levels of pyruvate and alpha- ketoglutarate in the blood. define How does a deficien..
What is contributing to the decreased alveolar ventilation. A 22-year-old man was in a motorcycle accident with resultant neck injuries that led to partial paralysis of the upper and lower limbs. Approximately immediately his chest felt heavy and he ..
A researcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (TMV). The cell contents are left in the covered test tube overnight. The next day this mixture is sprayed on tobacco plants. Which would be expecte..
What disorder does this man have? Gastric secretions normally include about 10mmole/L potassium. How do you account for the low serum potassium in this patient.
Anatomical attributes that are reduced and functionless in organisms but related to functional organs in related organisms are termed. Vestigial. Homologous.
Darwin was wrongly alleged to have said that "man comes from the monkeys." The correct way for a modern biologist to describe the apparent sequence of human evolution.
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