Susan is conducting an experiment to see if plants will grow better with application of fertilizer. She separates 50 plants into two groups of 25. One group receives a liquid fertilizer when watered every other day, and the other group receives only water on the same days. The plants are kept in a greenhouse with constant and equal amounts of sunlight, and a constant temperature. She measures the plants once a week for 12 weeks. At the end of 12 weeks, the plants with the fertilizer grew an average of 9 inches, and the ones that were not given the fertilizer grew an average of 5 inches.In the scenario described above, the plants that received fertilizer are the ________ group, and the plants that did not receive fertilizer are the ________ group.
A. controlled; non-treatment
B. control; treatment
C. treatment; exposed
D. treatment; control
Answer: D
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Which of the following best matches the description?Kind of chemical that kills many different types of living things.
A. micronutrients B. fungicide C. herbicide D. macronutrients E. soft pesticide F. weed G. macronutrient H. auxin I. hard pesticide J. persistent pesticide K. rodenticide L. biomagnification M. chlorinated hydrocarbon N. biocide O. micronutrient P. pheromone Q. organophosphate
________ is the conversion of organic waste into mulch or humus
A) Injecting B) Compacting C) Cogeneration D) Reusing E) Composting
New York and Pennsylvania, together with portions of New Jersey and Maryland, made up the ________ core
A) New England B) Southern C) Middle Atlantic
What may be an ecological implication of global warming?
A) Since biodiversity is usually higher in warmer, milder climates, there will be little or no ecological implications. B) In general, plants and animals will probably benefit from warmer temperatures. C) Plants and animals may not be able to move to a suitable habitat quickly enough. D) Plants and animals will adjust quickly to the changes in temperature and begin to replicate and reproduce in new areas. E) Since farmland may be lost, the habitats of plants and animals will increase in area.