A significant reduction in the amount of which gas would allow more ultraviolet radiation to reach Earth's surface?
a. oxygen
b. methane
c. ozone
d. cyanide
e. carbon dioxide
c
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Tear ducts pass between which two bones?
a. maxilla and sphenoid b. sphenoid and ethmoid c. nasal and lacrimal d. lacrimal and zygomatic e. lacrimal and maxillary
The ________ exchange capacity is a basic measure of soil quality and increases with higher clay and organic matter content
Fill in the blank(s) with correct word
What are the consequences if decomposers are removed from the carbon cycle?
A) Fewer carbon compounds are broken down. B) CO2 levels in the atmosphere increase. C) Primary consumers are not able to consume as many producers. D) The burning of wood and fossil fuels increases.
Put the following steps in the procedure for producing a karyotype in the correct order.I. Cells are visualized under the microscope.II. Cells are stimulated to divide.III. Homologues are organized into sets by matching size and banding patterns.IV. The cells are exposed to a hypotonic solution.V. Cells are stained and placed on a microscope slide.
A. II, IV, I, V, III B. IV, II, V, I, III C. IV, V, II, I, III D. I, II, IV, V, III E. II, IV, V, I, III