What occurs when benzodiazepines bind to their receptors in the brain? Of the GABA receptor subunits, GABAa appears to contain the benzodiazepine receptor, which is distinct from the GABA binding site. When benzodiazepines bind, gating for chloride channels is triggered, resulting in hyperpolarization of the cell and a decrease in neuronal excitation. What are sedative […]

Which events are likely to be catastrophic to an ecosystem select the two correct answers? A catastrophic event with respect to an ecosystem is an event that can cause great damage or suffering to an ecosystem. Hence options C – introduction of an unchecked invasive species and option E- massive flooding are the correct options. […]

What are the 4 types of federal grants? There are actually just four main types of grant funding. This publication provides descriptions and examples of competitive, formula, continuation, and pass-through grants to give you a basic understanding of funding structures as you conduct your search for possible sources of support. What are the 3 types […]

What is the movement of people into a country called? immigration What is it called when people migrated from the countryside to the cities? The movement of populations from rural to urban areas is called urbanization. What are the types of internal migration? Four types of internal migration are: Rural to urban. Urban to rural. […]

What are immunocompetent cells? Astrocytes are immunocompetent cells that participate in local immunological reactions. At the site of CNS damage, these cells can phagocytose dead cells and act as an antigen presenting cell in the initial phase of the immune response. Activated astrocytes express MHC II, which is involved in antigen presentation. Which cells help […]

What is the structure of the Declaration of Independence? The Declaration of Independence is made up of five distinct parts: the introduction; the preamble; the body, which can be divided into two sections; and a conclusion. The introduction states that this document will “declare” the “causes” that have made it necessary for the American colonies […]

What adaptations do marine mammals have? One of the major behavioral adaptations of marine mammals is their ability to swim and dive. Pinnipeds swim by paddling their flippers while sirenians and cetaceans move their tails or flukes up and down. Some marine mammals can swim at relatively high speeds. Which are adaptations that allow marine […]

Is heart rate measured in beats per minute? Your pulse is the rate at which your heart beats. Your pulse is usually called your heart rate, which is the number of times your heart beats each minute (bpm)….Normal resting heart rate. Age or fitness level Beats per minute (bpm) Adults: 60–100 Well-conditioned athletes: 40–60 When […]

How do the temperature of land and water compare? It takes less energy to change the temperature of land compared to water. This means that land heats and cools more quickly than water and this difference affects the climate of different areas on Earth. The smaller volume of land however attains higher temperatures. Why is […]

Which diagnostic procedure measures electrical activity within heart muscle fibers? electromyography Which diagnostic test records the strength of muscle contractions? What diagnostic procedure is used to evaluate joint mobility and muscle strength? Range of motion testing (ROM): Is a band of fibers that holds structures together abnormally? Sarcopenia is a band of fibrous tissue that […]