Suppose a bag made of a selectively permeable membrane was filled with a 5% solution of glucose and sealed. What would happen if the bag was placed in pure water or in a 10% glucose solution?
What will be an ideal response?
In pure water, the bag would swell as water moves in. In the glucose solution, the bag would shrink as water moves out.
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The idea that most ecological communities merge into one another gradually is part of the
A. equilibrium model. B. species-area effect. C. time hypothesis. D. organismic model. E. principle of species individuality.
The circulatory system's main function is to help maintain homeostasis of body fluids
Indicate whether the statement is true or false
The malleus and incus function to
A) channel sounds in the inner ear. B) amplify sound. C) convert a sound wave into an electrical impulse. D) convert a long wave light into an electrical impulse. E) sense static position.
Organic molecules consisting of only hydrogen and carbon are called:
A) carbohydrates. B) hydroxyls. C) hydrocarbons. D) fats. E) carbonic hydrides