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Biology
brain, central nervous system, human being, nervous tissue ,neurons.. simplest to most complex
Molecules too large to pass through the cell membrane can be transported into the cell by: a. Diffusion. b. Osmosis. c. Endocytosis. d. Exocytosis
Explain how living organisms changed the environment during earth's early years
a student drew the following model. Carbon dioxide + water- -(Light) - -> sugar + oxygen. What does the model represent
Name and briefly describe three digestive system problems common to middle aged adults. name and briefly describe one common to teenagers name and briefly describe one common in elderly persons
Which is required for both anaerobic respiration and aerobic respiration?
Why do people think alligators are green?
Which short description best describes the body plan of modern sponges? a gel-like consistency with cells interspersed, making up a semi-solid structure an aggregation of cells built around a water canal system a complete gut with an anterior mouth and posterior anus a mouth connected to a blind sac in which digestion occurs a complete gut with one opening serving as both mouth and anus
A bacterial species that becomes resistant to certain antibiotics may have acquired the resistance genes from another bacteria; species. this phenomenon of acquiring genes from another organism without being the offspring of that organism is known as. a. hybridization b. horizontal gene transfer c. vertical gene transfer d. competence
The most common type of rock on the earth (accounting for the greatest volume) is:
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