The per capita growth rate (r) is synonymous with:
A. Type I growth rate.
B. Type III growth rate.
C. logistic growth rate.
D. intrinsic growth rate.
E. extrinsic growth rate.
D
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We have a family of genes that code for different forms of myosin. Where in the sequence would you expect to see differences among these genes?
A. regulatory region only B. product coding region only C. regulatory and/or product coding regions D. no difference in any aspect of the gene sequence
About how many bases of DNA wrap around a histone complex?
A. <50 B. 150 C. 200 D. >1,000
Which of the following statement(s) about the hydrologic cycle is (are) true?
A. Some water evaporates from land and from plants. B. Once water sinks into the ground, it is safe from human exploitation or pollution until it has rejoined the ocean. C. All water molecules that evaporate from the ocean precipitate on land and move by gravity through groundwater to the ocean again. D. Because this is a true cycle, it is impossible to run out of fresh water for human use. E. All of the choices are true.
Which one of the following is an example of osmosis?
A. The smell of freshly baked pie spreads throughout a house. B. Water enters a plant by passing through the root cell membranes. C. Food in the refrigerator starts to taste like onions because the onions in the vegetable bin have been stored unwrapped. D. Potassium ions enter a red blood cell through the action of a specific ion transport protein.