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In fluid dynamics, a convection cell is the phenomenon that occurs when density differences exist within a body of liquid or gas. These density differences result in rising and/or falling convection currents, which are the key characteristics of a convection cell. When a volume of fluid is heated, it expands and becomes less dense and thus more ...
The same cells can be used for constructing several environments, though individual cells' relationships to each other may differ on a map by map basis. [8] The possible involvement of place cells in cognitive mapping has been seen in a number of mammalian species, including rats and macaque monkeys. [20]
The options are the possible answers that the examinee can choose from, with the correct answer called the key and the incorrect answers called distractors. [4] Only one answer may be keyed as correct. This contrasts with multiple response items in which more than one answer may be keyed as correct. Usually, a correct answer earns a set number ...
Every cell consists of cytoplasm enclosed within a membrane; many cells contain organelles, each with a specific function. The term comes from the Latin word cellula meaning 'small room'. Most cells are only visible under a microscope. Cells emerged on Earth about 4 billion years ago. All cells are capable of replication, protein synthesis, and ...
Cell biology (also cellular biology or cytology) is a branch of biology that studies the structure, function, and behavior of cells. [1] [2] All living organisms are made of cells. A cell is the basic unit of life that is responsible for the living and functioning of organisms. [3] Cell biology is the study of the structural and functional ...
How fear plays into your perceptions on things. Games and scenarios involving trying to remember things when there is fear involved, how sound effects and music can make a scene look scary. Silva plays a Russian-roulette type of game where he experiences the powers of dread. Trying to remember objects in a haunted house.
A place cell is a kind of pyramidal neuron in the hippocampus that becomes active when an animal enters a particular place in its environment, which is known as the place field. Place cells are thought to act collectively as a cognitive representation of a specific location in space, known as a cognitive map. [1]
A complex system is a system composed of many components which may interact with each other. [1] Examples of complex systems are Earth's global climate, organisms, the human brain, infrastructure such as power grid, transportation or communication systems, complex software and electronic systems, social and economic organizations (like cities), an ecosystem, a living cell, and, ultimately, for ...