In the clotting process, fibrinogen is converted to fibrin Indicate whether the statement is true or false
True
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Why is energy lost when herbivores eat primary producers?
A) Primary producers have energy stored in indigestible substances. B) Primary producers cannot produce once eaten. C) Digestion takes place so rapidly that very little energy is absorbed. D) Most primary producers contain no usable energy for herbivores.
An avid gardener composts her wastes near the back of her property, away from her house. She moved the compost heap out there because it sometimes heats up enough to smoke. When asked why it heats up so much, she answers, simply, “Because the second law of thermodynamics says so!” How does the second law of thermodynamics explain her compost smoking?
a. Gardeners will often set their compost heaps on fire first to accelerate the rate of decomposition. According to second law of thermodynamics, ash and carbon form and smoke is given off. b. The second law of thermodynamics says that energy in a system is always increasing. This increase in energy includes the energy in compost heaps. As the energy increases, heat is produced. c. The breakdown of compost involves a transformation of energy from chemical bonds in the decomposing organic matter. The second law of thermodynamics says that there is no 100% energy transfer, so some of the energy is lost to the surroundings as heat. d. The gardener is incorrect and her garden compost heap has nothing to do with the second law of thermodynamics.
__________ is normally far less than __________. Fill in the blank(s) with the appropriate word(s)
The number of individuals per unit area is the
A. age distribution. B. biotic potential. C. distribution ratio. D. population density.