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1 day ago · Organisms and their Classification. Organisms can be defined as a living thing, a unique, complex organization exhibiting the following significant characteristics: Can react to stimuli: Organisms can sense the external factors and respond accordingly. Can grow: Organisms can increase the mass of an individual.
1 day ago · Escherichia coli, one of the many species of bacteria present in the human gut. Gut microbiota, gut microbiome, or gut flora are the microorganisms, including bacteria, archaea, fungi, and viruses, that live in the digestive tracts of animals. [1] [2] The gastrointestinal metagenome is the aggregate of all the genomes of the gut microbiota.
5 days ago · Immune system, the complex group of defense responses found in humans and other advanced vertebrates that helps repel disease-causing entities. Immunity from disease is conferred by two cooperative defense systems: innate immunity and acquired immunity. Learn more about the immune system’s mechanisms and evolution.
5 days ago · human nervous system, system that conducts stimuli from sensory receptors to the brain and spinal cord and conducts impulses back to other parts of the body. The conduction of electrochemical stimuli from sensory receptors occurs via organized groups of specialized cells, consisting largely of neurons, various neural support cells, and tracts ...
5 days ago · Asteroids are left over from the formation of our solar system. Our solar system began about 4.6 billion years ago when a big cloud of gas and dust collapsed. When this happened, most of the material fell to the center of the cloud and formed the sun. Some of the condensing dust in the cloud became planets.
6 days ago · Matter: Atoms and Properties - Open Response Question 3. Force and Motion - Open Response Question 3. Forms of Energy - Open Response Question 1. Forms of Energy - Open Response Question 2. Earth's Structure & Natural Processes - Open Response Question 1.
5 days ago · e. Metabolism ( / məˈtæbəlɪzəm /, from Greek: μεταβολή metabolē, "change") is the set of life -sustaining chemical reactions in organisms. The three main functions of metabolism are: the conversion of the energy in food to energy available to run cellular processes; the conversion of food to building blocks of proteins, lipids ...
