1. Wallerian DegenerationA) describes what happens to the axon when there is myelinopathyB) is a specific diseaseC) rarely occurs in response to traumatic injury to the axonD) None of the above 2. Explain in 3 sentences or less what is the difference between regeneration and denervation. 3. Explain in 2 sentences or less how a muscle fiber that lost its connection to a motor neuron could regain a connection to a motor neuron. 4. Discuss a) all the different diseases we have talked about since our first midterm

Identify the type of energy used in each action. the flexing of an arm muscle: a signal transduction process by a neuron: a ball at the top of a hill: 1. electrical energy 2. mechanical energy 3. gravitational potential energy

Time ! for a smell to begin the process of registering in your brain, first you must a) inhale odor molecules into the nasal cavity b)transduce scent chemicals c)have a scent to inhale d)all answers can work

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.