Positive feedback is a mechanism used by the body that results in amplification or enhancement of a signal that has already been activated. An example of this would be ____.
A. shivering to increase temperatureWhich of these statements is true with regard to eukaryotic and prokaryotic cells?
A. Prokaryotic cells can contain lysosomes.Which organelle is responsible for generating ATP that is used for chemical energy?
A. ribosomeWorms lack which of these?
A. eyes and brainWhich of these is considered an example of naturally acquired passive immunity?
A. breastfeedingWhich of these is not a part of the body's chemical defense system against infection?
A. lysozymeMeiosis produces ____ cells and mitosis produces ____ cells.
A. somatic; germWhich of these correctly matches photosynthesis and aerobic cellular respiration with their corresponding, balanced chemical equations?
A. Photosynthesis: 6CO2 + 6H2O + EM Radiation -> C6H12O6 + 6O2 Cellular Respiration: C6H12O6 + 6O2 -> 6CO2 + 6H2O + 36ATPWhich of these is true of viruses?
A. They are larger than bacteria.Which chemical(s) carry an impulse along a nerve cell?
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