The upper, orange-shaded portion of this molecule is _____
1.bipolar, containing both hydrophobic and hydrophilic regions
2.hydrophobic, keeping water molecules on the outside of the membrane
3.hydrophilic, able to interact with water molecules
4.a passive transport protein, allowing molecules to pass through the membrane
3
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“A change over time” is the definition of ____
a. classification b. ecology c. physiology d. evolution e. heritage
The highest diversity of plant and animal life occurs in
A) tropical savannas. B) tropical rain forests. C) temperate deciduous forests. D) boreal forests.
The lancefield classification system for streptococci is based on
A. P protein B. M carbohydrate C. C carbohydrate D. M protein
You must decide how to classify a newly discovered organism, but you have only limited test materials to help you make your decision. Chemical A glows if a nuclear envelope is present. Chemical B turns blue in the presence of chloroplasts
Chemical C fizzes when mixed with chitin. After testing the organism, you find out that it glows, doesn't turn blue, and fizzes. You classify this organism as a A) diatom. B) bacterium. C) slime mold. D) fungus. E) zooflagellate.