Bile is crucial for ______ digestion because of its function in _______.
A. protein, protecting the stomach lining
B. fat, solubilizing glycerol:fatty acid bonds
C. nucleic acids, uncoiling DNA strands
D. fat, emulsification
E. protein, lyophilization
D. fat, emulsification
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A child swinging on a swing utilizes which type (or types) of energy?
a. kinetic energy only because the child is in constant motion b. potential energy only, because the child has to invest energy to get the swing to go c. chemical energy only, because it is the child's metabolism that powers the muscles that make the swing move d. kinetic and potential energy only, but in constantly changing ratios: when changing direction it is pure potential energy; at the bottom of the arc, it is pure kinetic energy e. kinetic, potential, and chemical energy. The child powers the swing with chemical energy in the muscle cells and the swing moves like a pendulum with changing ratios of kinetic and potential energy.
Which viral life cycle would result in a quicker death for an infected cell?
A. The prophage cycle B. The retroviral cycle C. The lysogenic cycle D. The lytic cycle
Which of the following describes active immunity?
a. immunity caused by the body producing antibodies in response to an antigen b. immunity caused by exposure to a vaccination or other pathogen c. a naturally occurring immunity caused by genetic factors or physiology d. a type of immunity caused by an increase in white blood cell productivity
What developmental event was key to the evolution of the chordates, by forming the notochord and dorsal nerve cord?
A. morphogenesis B. organogenesis C. gastrulation D. neural crest formation E. neurulation