Write a Worm neuronal function assay paragraph about a worm neuronal function and find an experiment that could test why the worm may have this worm neuronal function. Such as a worm spiraling. One robust assay of worm behavior is…. “Finish the sentence” and find an experiment that could determine why the worm behavior is this way.
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- Using microelectrodes, a researcher recorded nerve signals in four neurons in the brain . The neurons are called A, B, C, and D in the table below. A, B, and C all can transmit signals to D. In three experiments, the animal was stimulated in different ways. The number of nerve signals transmitted per second by each of the cells is recorded in the table. Write a short paragraph explaining the different results of the three experiment. 09Distinguish between innate and learned behavior. Explain how an experiment using optogenetics could demonstrate the concept of “fire together, wire together” Predict whether a given change in receptors or neurotransmitter release is likely to strengthen or weaken a synaptic connection. Hypothesize how a channel or another molecule in a plant or animal would detect outside stimuli such as touch, chemicals, or light. Predict how perturbations in light levels, retinal, opsins, and cation channels in photoreceptors affects the photoreceptor’s membrane potential and neurotransmitter release. Given information about a neuron’s responses to stimuli, hypothesize what its receptive field might be.You have received a $500,000 grant from the National Science Foundation to study male signalling in peacock spiders. After your university takes most of that money for overhead costs, you now have a small amount left over to spend on peacock spider research over the next 3 years. What is the first question that you would focus on that you think would increase our understanding of peacock spider male displays the most? State a relevant hypothesis and explain briefly how you would go about testing it.
- Why Researchers choose to use animal models in pharmaceutical research? Briefly Explain. Please briefly explain at your own easy words.A study was done to see why crickets chirp and the reactions to stimulus that caused the audible sound to occur. Throughout the experiment they tested how a target (male) cricket interacts with different stimuli in the form of both male and female cricket. Their methods revolved around getting quantitive data on three separate behaviors that occurred in the target male: locomotion(any time the target did a continuous movement), contact(counted when the target touched a stimulus with any part of its body), and chirping(audible, chirp sound with leg or wing movement from the target). The target was rotated each test, so each data point came from a different cricket with the female stimulus, being the same each time, and their previous target becoming the male stimulus. They would place the two male crickets in the target bin and let them acclimate for two minutes before they began collecting data from the target for three minutes. Then the female stimulus was placed in the bin and left…Four research teams measured the speed at which signals travel down a certain type of nerve fiber, and what each team wrote in its team notebook is shown in the table below. Suppose a later and more reliable measurement gives 111 m/s for the signal speed in the same type of nerve fiber. Decide which of the earlier measurements was the most accurate, and which was the most precise. what was written most accurate most precise team in the notebook ? measurement measurement A "101.m/s" В "91.m/s + 5.0m/s" C "131.m/s + 2.0%" D "between 106.0m/s and 126.0m/s"
- Single cell recordings in the dorsal stream (parietal areas) tell us about the mechanisms involved in action control. All of the following is true, EXCEPT: a. All listed here are correct b. Neurons in different parietal areas support the link between gaze-centered neurons area to the body-centered neurons c. Some neurons signal whether to move eyes and some neurons signal whether to move hands d. Some neurons in the anterior intraparietal area respond to 3D shapes that vary in size/orientation, but not to 2D shapes e. Some neurons respond based on the position of an object in relation to the hand f. Neurons in the parietal cortex are allocentric and they exhibit activity that reflects learned movementsIn the discussion section the authors wrote “The prevailing hypothesis about the action of tACS is the alternating fields can increase or decrease the power of oscillatory rhythms in the brain, and in a frequency-dependent manner, through synchronizing and desynchronizing neuronal networks [17].” a. Is the hypothesis a null hypothesis or an alternative/alternative hypothesis? b. By what word or words do you know that your answer to the question is correct? c. Why did you choose this word or words as an answer to the question?Which of the following would you NOT expect with respect to variation in neural conduction velocity? Neural conduction speed increases over developmental time as Schwann cells synthesize myelin sheaths, insulating neurons Neural conduction velocity is higher in invertebrate species with insulating sheaths functionally equivalent to vertebrate myelin Neurons and species with larger axon diameters should have greater conduction velocities Neural networks with greater serial processing (i.e., lines of connecting neurons) should have greater neural conduction velocities. The thyroid hormones (triiodothyronine and thyroxine) have a range of roles in regulating growth and metabolism. Thyroid hormones act throughout the body to regulate protein synthesis, long bone growth, and neural maturation. This represents an ______ effect of thyroid hormones. At the same time, through some unknown mechanism, application of thyroid hormones results in an immediate reduction in body temperature, which…
- Why Researchers choose to use animal models in pharmaceutical research? Explain. Please explain at your own easy words.In an investigation of fruit fly behavior, an enclosed choice chamber was used to test whether the spatial distribution of flies is affected by the presence of a substance placed at one end of the chamber. To test the flies’ preference for different substances, 50 flies were introduced into the choice chamber. A piece of ripe banana was placed at the end of the chamber on side A and a piece of unripe banana was placed at the end of the chamber on side B (Figure 1). The positions of the flies were observed and recorded at the start of the experiment and after 10 minutes (Table 1).List four factors that might influence the reaction time to a stimulus .Consider the ruler drop response time test you performed; do you believe it was valid and reliable? Why or why not ? Provide justifications for your answer. [Hints: Here are a few ideas. Will you conduct many tests on the same subjects (that means the people you are testing))? Is it necessary to use averages? Are there any precautions to take? [Are there any variables that must remain constant?]