Q: Q: Pressure and vibration are examples of what type of stimuli? Read this paragraph and choose the correct option from the provided answers: Functional Receptor Types A third classification of receptors is by how the receptor transduces stimuli into membrane potential changes. Stimuli are of three general types. Some stimuli are ions and macromolecules that affect transmembrane receptor proteins when these chemicals diffuse across the cell membrane. Some stimuli are physical variations in the environment that affect receptor cell membrane potentials. Other stimuli include the electromagnetic radiation from visible light. For humans, the only electromagnetic energy that is perceived by our eyes is visible light. Some other organisms have receptors that humans lack, such as the heat sensors of snakes, the ultraviolet light sensors of bees, or magnetic receptors in migratory birds. Receptor cells can be further categorized on the basis of the type of stimuli they transduce. Chemical stimuli can be interpreted by a chemoreceptor that interprets chemical stimuli, such as an object's taste or smell. Osmoreceptors respond to solute concentrations of body fluids. Additionally, pain is primarily a chemical sense that interprets the presence of chemicals from tissue damage, or similar intense stimuli, through a nociceptor. Physical stimuli, such as pressure and vibration, as well as the sensation of sound and body position (balance), are interpreted through a mechanoreceptor. Another physical stimulus that has its own type of receptor is temperature, which is sensed through a thermoreceptor that is either sensitive to temperatures above (heat) or below (cold) normal body temperature. Choices: - chemical - atmospheric - thermal - physical A:
A: physical

Q: Q: Microevolution occuring and taking place over many generations results in? Read this paragraph and choose the correct option from the provided answers: Macroevolution occurs over geologic time above the level of the species. The fossil record reflects this level of evolution. It results from microevolution taking place over many generations. Choices: - fission - microinjection - recalibration - macroevolution A:
A: macroevolution

Q: Q: Through what system of the body do hormones generally travel? Read this paragraph and choose the correct option from the provided answers: Choices: - respiratory - endocrine - excretory - circulatory system A:
A: circulatory system

Q: Q: What do cells do in order to replace damaged or worn out cells? Read this paragraph and choose the correct option from the provided answers: Cells also divide in order to replace damaged or worn-out cells. Choices: - replicate - die - fold - divide A:
A: divide