Birds and reptiles save water by eliminating __________ rich wastes as uric acid crystals. Fill in the blank(s) with the appropriate word(s)
ANSWER: nitrogen
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A good friend has started the Atkins diet (a plan focused on eating food that is low in carbohydrates) and calls to ask you which foods to avoid. Which of the following foods are high in carbohydrates?
a. ribeye steak, bacon, pork chops b. butter, milk, cheese c. rice, bread, corn d. eggs, chicken wings, yogurt
Which of the following is not a way in which chemical bonds can be formed?
a. sharing electrons b. losing electrons c. splitting electrons d. gaining electrons e. attracting opposite charges
When one tallies the species in a community by numbers of individuals, one typically finds that:
A) all species have about the same number of individuals. B) most species are dominant, whereas a few others are represented by relatively few individuals. C) a few species are dominant, whereas most others are represented by relatively few individuals. D) there is no general pattern in the relative abundances of species.
Which of the following is not a characteristic of life?
A. The ability to reproduce B. The ability to grow and develop C. The ability to respond to the environment D. The ability to move