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The provided diagram illustrates how fertilizer can be produced from organic waste at home. Overall, this process comprises five steps, divided into two main stages: pre-processing and composting. Pre-processing consists of three steps, with the first one being the preparation of a plastic container.
Excretion - the disposal of metabolic waste products, including carbon dioxide from respiration; Nutrition - the acquisition of energy and nutrients for growth and development, either by, absorbing organic matter or by synthesising organic molecules (e.g. photosynthesis)
4.3.U10 Animals such as reef-building corals and Mollusca have hard parts that are composed of calcium carbonate and can become fossilized in limestone. State that hard shells, such as in mollusk and coral, are made of calcium carbonate. 4.3.A1 Estimation of carbon fluxes due to processes in the carbon cycle.
GREEN. 4.3 carbon cycle. In the Carbon Cycle we will look at how carbon is one of the most important elements that are recycled in an ecosystem. We will see how Inorganic carbon dioxide in the atmosphere is trapped or fixed as organic carbon compounds during photosynthesis. This unit will last 3 days.
The method by which an organism gains organic molecules to fuel respiration is known as its mode of nutrition; There are two main modes of nutrition; autotrophy and heterotrophy; Autotrophs. An autotroph synthesises, or produces, its own organic molecules from simple inorganic substances in its environment
HL Organic Chemistry 20.2 Synthetic Routes 20.2.1 Synthesis. Synthesis (DP IB Chemistry: HL) Revision Note. Download PDF. Author. Stewart. Expertise. Chemistry Lead. Organic Synthesis. It is possible to make a large number of organic products from a few starting compounds and the necessary reagents and conditions.
Organic or inorganic substances. Light, sound, or heat energy. Biological agents. Invasive species. Human activities, including the combustion of fossil fuels, are the major sources of pollution. Defining pollution levels is challenging and depends on the nature of the environment. For example:
