Why should the percentage of allowed weed or other crop seed be under 2 percent? O These other plants will compete with the desired plant for attention, rain, and desiccants.
O These other plants will compete with the desired plant for light, space, and nutrients.
O These other plants will compete with the desired plant for shelf space, threshing, and roguing.
O These other plants will compete with the desired plant for soil, worms, and warmth.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

Onsider the paragraph above. what is one chemical property of water? a) water is a polar molecule. b) water is the universal solvent. c) water reacts with group 1 metals. d) water has a high specific heat capacity.

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.