THE ECOSYSTEM: INTERRELATIONSHIPS BETWEEN
The word “ecology” comes from the Greek and means “house study” or “living relations study”. That essentially defines what it is – the study of relationships. Relationships Between Organisms. No other species their surroundings. There are four basic types of relationships that living things have with one another. Living things, as most consider them, live within an environment and use parts of it to continue living. At the minimum materials and energy seem to be required.
Model Ecosystems Use this interactive module developed by McGraw Hill to learn about energy flow in forest ecosystems. The Effect of Populations on Ecosystems The beginning teacher knows how populations and species modify and affect ecosystems.
Species can affect one another and ecosystems in a variety of ways. Communities tend to become more complex over time. This process, known as succession, leads to changes in soil, and the populations of organisms that are present.
catchsomeair.us: Scientific Studies: Relationships
Primary succession takes place when organisms gradually inhabit a bare substrate such as rockleading to the development of soil and gradual increases in the numbers of kinds and species. Over time, as conditions change, different groups of organisms become prevalent. Secondary succession occurs in an area where a disturbance, such as fire, has occurred.
In general, early stages of succession are characterized by fast-growing or weedy species that tolerate extreme conditions, known as r-selected species.
Gradually, these early invaders are replaced by other species K-selected species that compete more effectively in the environment that has been colonized and changed by the weedy colonizers. Invasive species are those that are introduced into a new habitat, where they out compete native species that share similar niches.
Energy and power technologies use processes to convert energy into power. Energy appears in different forms and can be transformed within a system. Energy can be transformed within a system or transferred from one system to another or from a system to its environment in different ways. Thermal energy is transferred from warmer objects to cooler objects. Mechanical energy can be transferred when two objects push or pull on one another. Electromagnetic energy can be transferred when an electrical source such as a battery or generator is connected in a complete circuit to an electrical device.
Chemical energy is transferred when particles are rearranged in a chemical reaction. Energy from the sun warms air and water, which creates moving currents within them. Every organism has a set of genetic instructions that determines its inherited traits. Celestial revolutions are caused by gravitational attraction. Friction is an example of an electromagnetic force that opposes motion between two surfaces. Heat energy is usually a by-product of an energy transformation. Heat flow from the earth and motion within the earth lead the outer shell of the earth to move around in large rigid pieces plates and leads to the creation and destruction of ocean basins, motion of continents relative to one another, earthquakes, volcanic eruptions, and development of mountain belts.
Heat moves in predictable ways, normally flowing from warmer objects to cooler ones, until the objects reach the same temperature. Human activities change land cover and land use patterns, add or remove nutrients from ecosystems and modify some of the fundamental cycles of the earth system, including the carbon cycle.
These changes can have unexpected and far-reaching effects due to the complex interconnections among earth systems. In a technological world, inventions and innovations must be carefully assessed by individuals and society as a whole.
Innovation is the process of improving an existing product, process, or system. Innovation is the process of modifying an existing product, process, or system to improve it.
Interaction of circulating air masses gives rise to a wide variety of weather phenomena including fronts, mid-latitude cyclones and anti-cyclonesand severe weather tropical storms, tornados, severe thunderstorms, etc. Invention is a process of creating new products, processes, or systems.
Invention is a process of turning ideas and imagination into new products, processes, or systems.
Interdependence of Living Things ( Read ) | Biology | CK Foundation
Inventions and innovations must be carefully assessed by individuals and society. Large scale wind patterns drive surface currents in the oceans and affects weather. Manufacturing is the process of turning materials into useful products.
Manufacturing is the process of turning raw materials into useful products. Mass is a measure of the amount of matter in an object. Mechanical advantage, using less force over a greater distance, allows the same work to be performed with less effort.
Moving electric charges produce magnetic forces and moving magnets produce electric forces.
People select, create, and use technology. Plants transform light energy into chemical energy, which then can be used by other living things. Safety is a preeminent concern for all technological development and use. Safety is one of the most important concerns for all technological development and use. Science and technology are interconnected. Simple machines help accomplish a task with less effort by either changing the direction of motion or increasing the mechanical advantage.
Others are gradual, such as the lifting up of mountains or their wearing away by erosion. Some organisms are made up of only one cell. Specialized cells perform specialized functions in multicellular organisms.
Technological literacy is necessary for a productive workforce. Secondary and higher order consumers are called Carnivores.
Tertiary and higher level Consumers: Species that obtain their nourishment by eating other meat-eating species. Species that obtain their nourishment from eating both plants and animal species. Also called Omnivores 3. They are the final link in the food chain.Symbiosis: Mutualism, Commensalism, and Parasitism
Comprise of organisms that feed on dead matter and break it down to release chemical energy back into the soil for plants to re-use them. A food chain or food web comprises a sequence of organisms through which energy and nutrients are taken in and used up.
A food chain in a wet meadow could be: Food chains begin from producers to consumers and the major feeding levels are called Trophic Levels. Producers belong to the First Trophic Level.