Autotrophic and Heterotrophic : The is divided into two product types  and a product dependent . Both types constitute a diversified and each of them is divided into different sections, where autotrophs form(photoautotrophs &chemoautotrophs) and heterotrophs range from( , , , derives and )  Autotrophs: A) Autotrophs are organisms able to utilize simple molecules with single carbon atom to produce compound molecules. Living organisms that use a self-feeding process, such as green , algae, and bacteria, can make their own food because of the presence of chlorophyll, which is a green pigment that helps absorb light and . Autotrophs can make their food in two ways (photoautotrophs& chemoautotrophs). The first pattern indicates the use of light energy that produces complex organic compounds such as carbohydrates, fats and proteins when absorbing light. The process of photosynthesis: is the process of absorbing light such as sunlight and using CO2 and H2O to produce O2 and C6H12O6.(1) Light + CO2 + H2O C6H12+O6 + O2 B) Chemoautotrophs The second type is less common and examples of these organisms (bacterium & protozoan) where they obtain energy through chemical synthesis. Chemical synthesis is: A process that uses some living organisms, such as bacteria and chemical energy, to produce carbohydrates. This type of chemical nutrient is often available in the ocean and seabed, where light cannot penetrate, including methanogens and sulfur oxides.(1)  Heterotrophs Heterotrophs is organisms that require complex carbon compounds rich energy hence, feeds on organic matter produced by, or available in, other organisms. Hetero is a class consumed in the food chain and among these organisms: all and fungi and most of the bacteria are not self-feeding. Because of the lack of chlorophyll, this group is not able to make its own food and their energy requirements are met by feeding on organic matter and other living organisms.(2) There are 5 distinct sorts of heterotrophs (herbivores, carnivores, omnivores, and decomposers) These organisms depend on living organisms to obtain their food and are divided into two types of carnivores and herbivores. , And is considered a primary consumer. These organisms are similar in composition to the body, but in eating meat there is further development. Where fatty acids are found from phospholipids to form docosapentaenoic tissues (C22: 5, n-3). Also there is a difference in the shape and strength of the teeth. Meat eaters often outnumber herbs because they feed on them, and are the most colonial on the island. These organisms live in forests such as deer (herbivores) and feed on herbs and plants and (carnivores) like lions live on prey. (3) Omnivores They are included after the primary consumers (herbs and meat) and are animals classified as secondary consumers. They are defined as living organisms that feed on herbs and meats such as bears and raccoons and live in harsh environments of tundra where there are short growing seasons. (4) Detritivores These organisms differ from previous living things, because they depend on the different type of food. They feed on such as earthworms, beetles and other invertebrate insects, or they feed through phagocytosis. These organisms live in marine environments and are often called bottom-feeders such as crabs and echinoderms. (5) Decomposers these organisms are the most important component of the ecosystem, as all other organisms depend on them. Analysts consider these organisms because they break down the remains of other organisms. The analysis process is divided into two parts: scavengers and analysts. (6) The first section Scavengers are creatures that feed on dead or and divide them into lakhasly.com © ﺗﻢ ﺗﻠﺨﻴﺺ اﻟﻨﺺ ﺑﻮاﺳﻄﺔ ﻣﻮﻗﻊ ﻟﺨﺼﻠ small pieces such as cockroaches and earthworms. The second section analyzers analyze small pieces, some of which are seen with the naked eye, such as fungi, while others do need to see with microscope. ((6

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