- published: 28 Oct 2015
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Antennae (singular: antenna) in biology have historically been paired appendages used for sensing in arthropods. More recently, the term has also been applied to cilium structures present in most cell types of eukaryotes.
In arthropods, antennae are connected to the front-most segments. In crustaceans, they are biramous and present on the first two segments of the head, with the smaller pair known as antennules. All other arthropod groups – except chelicerates and proturans, which have none – have a single, uniramous pair of antennae. These antennae are jointed, at least at the base, and, in general, extend forward from the head. They are sensory organs, although the exact nature of what they sense and how they sense it is not the same in all groups, or always clear. Functions may variously include sensing touch, air motion, heat, vibration (sound), and especially olfaction (smell) or gustation (taste).
Antennae are the primary olfactory sensors of insects and are accordingly well-equipped with a wide variety of sensilla (singular: sensillum). Paired, mobile, and segmented, they are located between the eyes on the forehead. Embryologically, they represent the appendages of the second head segment.
Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, evolution, distribution, and taxonomy. Modern biology is a vast and eclectic field, composed of many branches and subdisciplines. However, despite the broad scope of biology, there are certain general and unifying concepts within it that govern all study and research, consolidating it into single, coherent fields. In general, biology recognizes the cell as the basic unit of life, genes as the basic unit of heredity, and evolution as the engine that propels the synthesis and creation of new species. It is also understood today that all organisms survive by consuming and transforming energy and by regulating their internal environment to maintain a stable and vital condition.
Subdisciplines of biology are defined by the scale at which organisms are studied, the kinds of organisms studied, and the methods used to study them: biochemistry examines the rudimentary chemistry of life; molecular biology studies the complex interactions among biological molecules; botany studies the biology of plants; cellular biology examines the basic building-block of all life, the cell; physiology examines the physical and chemical functions of tissues, organs, and organ systems of an organism; evolutionary biology examines the processes that produced the diversity of life; and ecology examines how organisms interact in their environment.
Antenna (pl. antennas or antennae) may refer to:
Antennae in biology have historically been paired appendages used for sensing in arthropods. More recently, the term has also been applied to cilium structures present in most cell types of eukaryotes. In arthropods, antennae are connected to the front-most segments. In crustaceans, they are biramous and present on the first two segments of the head, with the smaller pair known as antennules. All other arthropod groups – except chelicerates and proturans, which have none – have a single, uniramous pair of antennae. These antennae are jointed, at least at the base, and, in general, extend forward from the head. They are sensory organs, although the exact nature of what they sense and how they sense it is not the same in all groups, or always clear. Functions may variously include sensing to...
This is actually the last bit of the BioTalk 6, a regular edutainment activity by Bangladesh Biology Olympiad, held on 7 January 2016 at the Department of Botany, Dhaka University, Bangladesh. Chamok Hasan, a sensation among the youth of Bangladeshi academia, was the presenter, during his brief visit to Bangladesh from USA.
How do plants convert light to chemical energy? How do they excite electrons, and where do the electrons go?
http://www.spiritscienceandmetaphysics.com/the-relation-between-long-hair-extrasensory-perception/?fb_comment_id=fbc_501297903304256_501376043296442_501376043296442#f17e4de85 http://rense.com/general95/hair.htm http://www.zengardner.com/the-spiritual-nature-of-hair/ Exposing all the lies and deceptions in today's popular beliefs with the scorching TRUTH; which will elevate YOU to new heights of awareness, raysun (rea-son, rays and or real sun = Light guidance through the darkness of ignorance...), perception, innerstanding, understanding, equalstanding, overstanding and outerstanding... Leading YOU to the TRUE PATH OF WISDOM!!! THE FIRE OF TRUTH!!! The Narrow way to LIFE!!! Its all about That Wholistic LIFESTYLE as nature intended my friends!!! Like (Thumbs Up), comment and share so ot...
Antennae (singular: antenna) in biology have historically been paired appendages used for sensing in arthropods. More recently, the term has also been applied to cilium structures present in most cell types of eukaryotes. In arthropods, antennae are connected to the front-most segments. In crustaceans, they are biramous and present on the first two segments of the head, with the smaller pair known as antennules. All other arthropod groups -- except chelicerates and proturans, which have none -- have a single, uniramous pair of antennae. These antennae are jointed, at least at the base, and, in general, extend forward from the head. They are sensory organs, although the exact nature of what they sense and how they sense it is not the same in all groups, or always clear. Functions may variou...
James Burch, Assistant Professor in the Department of Epidemiology and Biostatistics at the University if South Carolina discusses the role of environmental and endocrine factors in cancer and the biological effects of non-ionizing radiation. He also looks at his research on the residents of Lookout Mountain, Colorado who have been exposed to radiation from radio and TV antenna.
Antenna to the Spirit World by Will Schreitz wschreitz@yahoo.com Copyright 2016 Holy Water Studios I do not own nor claim to own the rights to this footage Created using http://studio.stupeflix.com/
Check out Bas Rutten's Liver Shot on MMA Surge: http://bit.ly/MMASurgeEp1 Mahalo biology expert Mary Poffenroth tells you about the chloroplasts found in photosynthetic organisms. Chloroplasts --------------------------------------------------------------------- Most of the living world runs on the energy provided by the sun. The transfer from solar to chemical energy happens through photosynthesis, which occurs in the organelle called chloroplast. Past the outer membrane you will find that the chloroplast is filled with a thick fluid called "stroma." Within the stroma are large stacks called thylakoids, arranged in granum. Think of the granum as a stack of pancakes. These thylakoids are where photosynthesis takes place. http://www.youtube.com/watch?v=y8_G9olr2fA Antennae Complexes --...
Movie showing a leaf footed bug (Heteroptera: Coreidae) waving its antenna. Citation: Wappler T, Guilbert E, Labandeira CC, Hörnschemeyer T, Wedmann S (2015) Morphological and Behavioral Convergence in Extinct and Extant Bugs: The Systematics and Biology of a New Unusual Fossil Lace Bug from the Eocene. PLoS ONE 10(8): e0133330. doi:10.1371/journal.pone.0133330 To read the full article: http://dx.plos.org/10.1371/journal.pone.0133330