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Sponges are classified within the phylum Cnidaria and are relatively simple multicellular organisms that predominantly inhabit marine environments. Their most distinctive feature is the presence of stinging cells called cnidocytes. In older classifications, Cnidaria and Ctenophora were grouped together under the heading “Coelenterata,” but in modern systematics, these two groups are recognized as separate phyla.Morphological Structure and Cellular FeaturesMembers of Cnidaria are diploblastic org

Electronic Jamming (English: Jamming) is an activity conducted under Electronic Attack (EA), a sub-discipline of Electronic Warfare (EW). Its primary objective is to deliberately disrupt, delay, degrade, or deceive critical enemy functions that rely on the electromagnetic spectrum, such as radar detection, communication, navigation, or command and control. This is achieved by transmitting high-power radio frequency (RF) signals toward the target receiver system—such as a radar or radio—causing i

Approximately 70% of World’s surface is covered by oceans, and millions of undiscovered species await discovery in the depths of these enormous water mass bodies.Oceans" image-alternate="" image-element-format="right">Science humans have explored only about 5% of the oceans, and the life forms encountered during these explorations reveal just how mysterious and astonishing the seas are. Creatures living in the deep ocean possess adaptations vastly different from those of surface-dwelling orga

OriginThe term is derived from the French word récif, meaning "shallow sandbar or coral reef" in French. This word was borrowed from the Spanish arrecife, which carries the same meaning. The Spanish term originates from the Arabic root rṣf, yielding the word ar-raṣīf (الرصيف), meaning breakwater. This term is an adjective derived from the Arabic verb raṣafa (رصف), which means "to pave with stones or to construct a road."ApplicationsGeography: Used to describe rock formations and coral-based stru