The pectoral girdle is composed of the ________, or shoulder blades, and the collarbones
Fill in the blank(s) with correct word
scapulae
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Identify the principal role of cellular respiration.
A. To convert the chemical energy of sugars into heat to maintain an elevated body temperature B. To convert kinetic energy into the chemical energy of sugars C. To convert solar energy into the chemical energy of sugars D. To convert the chemical energy of sugars into the chemical energy that fuels life's processes
Eutrophication describes:
A. the process in which added nutrient levels lead to the growth of algae and cyanobacteria populations. B. the reduction of oxygen in the water as a result of bacterial decomposition. C. the total amount of nitrogen fertilizer that leaves agricultural fields as surface runoff. D. the increased production of crops using fertilizer. E. the death and decomposition of algal blooms.
A soil with roughly equal amounts of humus, silt, clay, and sand is called a ____
a. topsoil b. loam c. subsoil d. compost e. oversoil
Which factor initiates the intrinsic clotting mechanism?
a. factor X b. factor XI c. factor ACI d. thrombin e. prothrombin activator