Answer:
C. a pre-synaptic neuron involved in egg-laying
Explanation:
Serotonin (5-HT) is a neurotransmitter, i.e., a molecule that binds to specific receptors and thus transmits signals from one pre-synaptic neuron to another target cell. In humans, serotonin is involved in many physiological functions including sleep, mood, emotions, appetite, digestion, etc. Moreover, <em>Caenorhabditis elegans</em> is a model organism widely used in neuroscience research in order to understand neuromodulation at the level of individual neurons. In <em>C. elegans,</em> serotonin modifies behavior by regulating neuronal excitability and synaptic efficiency. Moreover, also in <em>C. elegans,</em> it has been shown that serotonin induces egg-laying and also provides a feedback regulatory mechanism by inhibiting the activity of the pre-synaptic neurons that release it. In consequence, in this case, it is expected that serotonin rescues the loss of function of serotonin receptors required for egg-laying by providing a regulatory feedback loop that contributes to serotonin adaptation.
The best and most correct answer among the choices provided by your question is the first choice or letter A.
Agriculture causes water pollution when fertilizers and pesticides flow into lakes and rivers is the best example of a way human lifestyles affect environmental systems.
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Answer:
photosynthesis has conserved the material which follows the law of conservation of mass
Explanation:
the amount of oxygen and carbon atoms released by photosynthesis are exactly equal to the atoms of material contained in carbon dioxide
Answer:
Explanation: using a safety shower to wash chemicals off skin and clothingwearing protective gloves when transferring bacteria and fungi to slidesfolding and tying up the electric cord of a microscope before carrying itusing tongs and a hot mitt to remove a beaker of hot water from a hot plate. Hope that helps :)
