Ecosystems, Lesson 2
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An ecosystem is defined by the interaction between living and non-living factors. Living components are called biotic factors, while non-living components are called abiotic factors. Abiotic factors like sunlight, water, air, and soil affect biotic parts of an ecosystem by providing warmth, energy for photosynthesis, oxygen, nutrients, and habitats.
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The document differentiates between biotic and abiotic components of an ecosystem. It defines biotic factors as living things that can reproduce, such as plants, animals, fungi, etc. Abiotic factors are defined as non-living physical and chemical elements, such as water, soil, sunlight, minerals, etc. A Venn diagram is used to show similarities and differences between biotic and abiotic factors. Both can affect species populations and communities, while biotic factors depend on abiotic factors for survival and abiotic factors do not adapt to changes.
Presentation on ecosystem
I prepared this slide presentation for a GED course.I am sharing it because I think it will help many people.
Structure and function of ecosystem 1
An ecosystem consists of all the living organisms in a given area along with the abiotic components they interact with, like air, water, soil and sunlight. The structure of an ecosystem includes the biological communities and distribution of organisms, as well as the quantity and distribution of non-living resources. The functions of an ecosystem include nutrient cycling through food chains and webs, energy flow, and processes like primary production and decomposition that allow the ecosystem to function as a self-sustaining unit.
A_L_notes_Ecology.docx
Ecology is the scientific study of the relationships between organisms and their environment. Key topics covered in the document include:
- Ecology examines how organisms interact with each other and their physical surroundings.
- Energy from the sun is transferred through food chains and webs, decreasing at each trophic level. Nutrients also cycle through ecosystems via decomposition.
- Ecological pyramids illustrate the transfer of numbers, biomass, and energy between trophic levels, with higher levels generally containing fewer and less biomass/energy.
Complete Chapter 9:1 The Environment
Ecology is the study of how living things interact with each other and their environment. There are biotic (living) factors like plants and animals, and abiotic (non-living) factors like water, sunlight, temperature, air, and soil. All living things depend on and influence each other and their surroundings. The environment and its living and non-living components are organized into levels from cells to organisms to populations to communities and ecosystems.
Concept of ecology and ecosystem
The document discusses key concepts in ecology and ecosystems. It defines ecology as the scientific study of interactions between organisms and their environment. An ecosystem is composed of organisms interacting with each other and their non-living environment. Ecologists study ecosystems at different levels from organisms to populations to communities and landscapes. Key ecosystem processes include nutrient cycling, energy flow, and food webs between organisms.
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Consumers
The document discusses the components of a food chain, including producers, consumers, and decomposers. Producers, like plants, are organisms that can produce their own food through photosynthesis. Consumers cannot produce their own food and must eat other organisms for sustenance. There are different types of consumers, including herbivores, carnivores, omnivores, and scavengers. Consumers are classified by their trophic level in the food chain, such as primary, secondary, and tertiary consumers depending on what organisms they prey on for food.
Producers
Producers, such as green plants and algae, are organisms that can produce their own food through the process of photosynthesis. Photosynthesis uses carbon dioxide, water, and sunlight to produce oxygen and glucose. It occurs within chloroplasts in the leaves of plants, where the green pigment chlorophyll captures sunlight and converts it into chemical energy that fuels the rest of the food chain. Proper lab safety procedures must be followed when experimenting with plants and their pigments.
Ecosystems Lesson 3
This document discusses organisms, species, and some examples of microorganisms that can be found in an ecosystem. It provides the following information:
- An organism is any living thing, while a species is a group of similar organisms that can reproduce.
- There are macro-organisms and micro-organisms, with the latter being too small to see with the naked eye.
- Examples of micro-organisms that will be looked for include Cyclops, Daphnia, seed shrimp, water mites, roundworms, Paramecium, and caddisfly larvae.
The Earths Crust #2 Mineral Identification
There are six main characteristics used to identify minerals:
1. Color - Though color alone cannot identify a mineral, it can provide a clue. Minerals can come in multiple colors.
2. Crystals - The specific shape crystals form in can help identify minerals.
3. Hardness - Hardness is measured on Moh's scale and compares scratchability. Hardness can identify minerals.
4. Streak - The color a mineral leaves when rubbed on a surface, often different than its own color.
5. Cleavage and fracture - How a mineral breaks, either along smooth planes (cleavage) or with rough edges (fracture).
6. Luster - How light reflects off a
The Earth’S Crust #13 Saving The Soil
The document discusses several methods farmers are using to reduce soil erosion, including planting windbreaks, covering soils with straw, creating terraces, plowing across slopes, leaving fields fallow, and rotating crops. Rotating crops between those that add and remove nutrients helps replenish the soil without needing as much fertilizer. Leaving a field fallow periodically also improves soil health. No-till farming further reduces erosion by leaving crop residues on the surface rather than tilling them under.
Farming And Soil
Farming practices have increased food production but also have negative environmental impacts. The use of fertilizers and manure can cause unpleasant smells, pollution of rivers and lakes when they run off farms, and algal blooms that kill fish. Farming can also lead to soil erosion as crops are harvested and the soil is exposed, stealing nutrients and leaving topsoil vulnerable to being blown or washed away, costing millions of tons of valuable soil each year. Desertification is a risk if erosion and drought combine to deplete the soil.
The Earth’S Crust #9 Soil
Soil forms from weathered rock and sediment that has been mixed with organic matter from dead and decaying plants and animals. As compost from plant and animal remains mixes with rocks and minerals, it creates humus, making the soil dark and fertile. Soil provides nutrients like nitrogen, phosphorus, and potassium that plants need to grow. Different soils have varying structures and depths depending on their location, and a soil profile maps the different layers underground.
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Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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