Von Thünen emphasized which of the following factors in his model of agricultural land use?
Labor cost
A: Transportation cost
B: Fertilizer cost
C: Machinery cost
D: Seasonal fluctuations in prices of farm products

Needed fast 15 points the process of natural selection favors certain characteristics in organisms, while it selects against other characteristics. what would happen if there was zero variation between all of the organisms on earth? a. organisms would evolve to increase variety b. natural selection would operate faster c. less food would be available d. evolution through natural selection would not occur

Ms. ringer asked her class "what are the favorite colors of the students in our school" which student correctly deceives ms. ringer's question

The vegetation that thrives in the tundra is limited to a. mosses, barley, wheat, and corn. b. coniferous trees. c. dwarf shrubs, mosses, lichen, potatoes, and beans. d. mosses, lichen, algae, and dwarf shrubs.