why is a petal an organ?
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petal is basically a part of a flower. it can also be referred to as an organ because it has a role in reproduction in plants.  the reason why they are bright coloured and showy is so that it can attract birds and insects towards it, so that they drop the pollen grains, thus helping initiate pollination.
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organs are things that process fluids or minerals for us. skeletons and muscles dont do that, they support us and provide mobility.
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It is a sensory organ found at the base of the antennae in critters such as millipedes, centipedes and some of the primitive insects and collembolans.\n\nI'm not sure exactly what it detects though.  I think it probably has to do with the mechanical reception/touch sense, activated when the antennae is moved far enough to trigger the organ's sensilla.
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organelles perform a specific function for the cell (respiration, transportation, etc.) much like organs perform a specific function for an organism (circulation, respiration, etc.).  animal cells and plant cells have some organelles that are the same, but some are different (plants have cell walls and vacuoles, while most animal cells do not).
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i dont understand what ur trying 2 ask but if this is the answer ur looking 4,than cells make up tissues, tissues make up organs, and organs make up organ systems.
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All Parts.Every organ.
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Liver:The liver is the largest internal organ in the human body\nFunction:It plays a major role in metabolism and has a number of functions in the body including glycogen storage, plasma protein synthesis, and drug detoxification.\nIt also produces bile,\nGall bladder:A part of Digestive system\n\nSpleen:Lymphatic system\nFunction:The spleen is a ductless, vertebrate gland that is not necessary for life but is closely associated with the circulatory system, where it functions in the destruction of old red blood cells.\n\nPancreas:A part of Digestive system and Endocrine system.\n\nPericardium:The pericardium is a double-walled sac that contains the heart \n\nCardiac valve:circulatory system\n\npyloric valve:Digestive system\nAt the end of pyloric stomach is presnt a strong circular muscle band,called pyloric valve
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MALE part of FLOWER: consists of anther and filament. Anter houses and produces pollen (sperm)-meiosis here. Filament holds the anther to the flower. \n\nthe main purpose is for reproduction.
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If you restrict this to botany, many people would say "orchids!!" This is because they are beautiful and have very intricate reproductive processes (often involving mimicry of female wasps or bees to induce males to try to mate with them, thus transfering pollen from flower to flower).\nSome others might nominate the sunflower or daisy family as the most highly evolved. The daisy-type flower itself is a very complex structure and takes a multitude of forms.
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The brain is the organ responsible for thought and other functions.  The mind is the abstract concept that is the culmination of all thoughts, not a physical object.
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Homologous organs are anatomically similar and similar in embryonic origin but they may or may not perform the same function. For example, wings of bat, flapper(flipper) of whale, forelimbs of horse and hand of man. These are all made up of humerus, radio-ulna, carpals, metacarpals, and phalanges which are derived from embryonic mesoderm.But these organs are used for flying, swimming, running, and handling of tools, correspondingly.\nAnalogous organs are those that are anatomically dissimilar, dissimilar in embryonic origin, but they perform the same function. For example, the wings of bat and wings of insects.The wing of bat has bones derived from mesoderm, whereas the wing of insect is derived from ectoderm and is made up of cuticle.
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Depending on how picky you want to be, the answer could be A or C.  By definition an organ is always composed of two or more tissue types.  Many organs contain all four major tissue types:  epithelial, connective, muscle, and nervous.  So A is certainly correct.  Since organ systems by definition are composed of two or more organs, they must also be composed of more than one tissue type.\n\nB is not correct because an organelle is a constituent of a single cell, which lies beneath tissues and organs in the hierarchy of organizational levels in complex multicellular organisms.  D could be correct if the organism in question is complex enough to have organs and organ systems.  On the other hand, simple forms of life such as bacteria and protists are also organisms, but being single-celled they obviously have not reached the level of organization at which tissues and organs are found.
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because flowers are considered beautiful and attractive and somewhat good smelling objects. ppl in their right brians r usually attracted to things that smell good and look good to them.
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Common animal (including human) organs include the heart, lungs, brain, eye, stomach, spleen, pancreas, kidneys, liver, intestines, skin, uterus, and bladder.\n\nBlood vessels exist in varying calibers:\n\nArteries \nAorta (the largest artery, carries blood out of the heart) \nBranches of the aorta, such as the carotid artery, the subclavian artery, the celiac trunk, the mesenteric arteries, the renal artery and the ileac artery. \nArterioles \nCapillaries (the smallest blood vessels) \nVenules \nVeins \nLarge collecting vessels, such as the subclavian vein, the jugular vein, the renal vein and the iliac vein. \nVenae cavae (the 2 largest veins, carry blood into the heart)
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Very good question! I didnt know the original organ of love was liver. I luv yahoo answer
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All human tissue and body parts are made of cells. They are the building blocks of all living creatures.
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A flower is the reproductive structure found in flowering plants (plants of the division Magnoliophyta, also called sperms). The flower structure contains the plant's organs, and its function is to produce seeds through reproduction. For the higher plants, seeds are the next generation, and serve as the primary means by which individuals of a species are dispersed across the landscape. After fertilization, portions of the flower develop into a fruit containing the seeds.\nThe function of a flower is to mediate the union of male and female gametes. The process is termed pollination. Many flowers are dependent upon the wind to move pollen between flowers of the same species. Others rely on animals (especially insects) to accomplish this feat. The period of time during which this process can take place (the flower is fully expanded and functional) is called anthesis.