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1. How do the semicircular canals determine the direction of acceleration of the head?a. The otoliths deflect hair cell cilia preferentially in one directionb. The ampullae deflect hair cell cilia preferentially in one direction c.c. The input from the three semicircular canals, each oriented in a different plane, are compared d.d.The input from the outer and the inner ampullar hair cells are compared2. Why is the eardrum larger in area than the oval window? (One answer only)a. It allows for sound localization (determining where a sound is coming from) due to the difference in vibration amplitude between the two membranesb.The eardrum responds better to lower frequencies, while the oval window responds better to higher frequencies c.c.The eardrum responds better to higher frequencies, while the oval window responds better to lower frequencies d.d.It allows for amplification of vibrations between the eardrum and the fluid of the inner ear
3. Choose all answers that apply: What are the cues that the auditory system uses to determine the location of a sound source?
a.Distortion of sound due to the shape of the pinnab.Direction of K+ current in hair cells c.c.Location of maximal vibration of the cochlear basilar membrane d.d.Intensity differences in sound between each ear e.e.Time differences between sound waves reaching one ear vs. the other
4. Why is there efferent innervation from the central nervous system the outer hair cells? (One answer only)a.This allows outer hair cells to send signals directly to the inner hair cellsb. This allows for amplification of cochlear membrane vibrations, modulated by feedback from the central nervous system cc. This allows for sound localization (determining which direction a sound is coming from) by inter-aural time difference d.d.This allows for sound localization (determining which direction a sound is coming from) by inter-aural intensity difference
A man with group A blood marries a woman with group B blood. Their child has group O blood. What are the genotypes? What other genotypes and in what frequencies would you expect offspring from this marriage?
Discuss similarities and differences of the enzymes catalase, superoxide dismutase, & superoxide reductase from the following points of view
Select an organism which consists of a population having two distinct traits. You can be creative here (red and green beetles, humans with red hair and brown hair, birds with short beaks and long beaks and so on).
Describe what you observed in your plaque smear wet mount, direct stained slide and indirectly stained slide. What were the similarities? Describe the three main steps to clone a gene into an organism.
Discuss two of the non-covalent forces that stabilize tertiary structure in proteins that are affected when the pH is changed.
Bone marrow contains at least three populations of stem cells. How do you isolate HSCs from human bone marrow separately from the other two then and discuss the structural and functional changes of Ichemic stroke.
non covalent interactions which are most important. What is the driving force for proteins that are embedded in lipid membranes?
Also glucose technically doesn't have a carbonyl functional group then because it is broken when the ring structure is formed? Is it a random chance that either alpha or beta glucose is formed.
Show (using both graphs and words) how the equilibrium theory of island biogeography could used to support the conclusion (despite the apparent contradiction). In addition include two other plausible explanations for this pattern.
Complex, Simple and Hypercomplex (Endstop cells) cells. Layer 4C and synapse onto simple cells. Whether or not they aer bars of light Simple cell is listening to a group of LGN cells. So each increment of 2.5 degrees has different simple cells.
Suppose that every non sterilized individual makes exactly ten gametes. Determine the total number of gametes?
Assume that you have two lines of plants: one is A/A; B/B, the other is a/a; b/b. You cross the two and then self the F1 plants. With respect to these 2-genes:
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