Molecules that are ______ dissolve best in water, while ______ molecules do not dissolve well in water.
Fill in the blank(s) with the appropriate word(s).
Ans: polar, nonpolar
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Which of the following human activities could contribute to the eutrophication of a lake? Check all that apply.
_____ dumping piles of leaves near a lake _____ planting trees around the periphery of the lake _____ washing clothes with soap in the lake _____ feeding the ducks in the lake _____ dumping plastic trash into the lake _____ fertilizing lawns near the lake Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about eutrophication? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The villi in the human small intestine helps to maximize nutrient absorption
Indicate whether the statement is true or false.
During a relative refractory period, ____
a. an axon can transmit impulses comparable to a resting neuron. b. an axon cannot transmit an action potential. c. an axon can transmit impulses, but the threshold level is higher. d. an axon can transmit impulses, but the threshold level is lower. e. all voltage-activated sodium channels are inactivated.
Why are early symptoms of a Francisella tularensis infection often difficult to diagnose?
A) Symptoms are often mild and go unnoticed. B) The bacteria do not grow in culture. C) Patient symptoms are the only indication that leads to a diagnosis. D) Symptoms progress so slowly it can be months before the patient seeks medical care. E) Early symptoms can vary based on how the bacteria are transmitted.