Ecosystem
... See video on “Interactions Among Organisms” under Marine Ecosystem videos on flashdrive ...
... See video on “Interactions Among Organisms” under Marine Ecosystem videos on flashdrive ...
1- Autotrophs
... down the complex organic compounds in dead matter (plants and animals) into simpler form which can be reused. Decomposers do not ingest their food. Instead they secrete digestive enzymes into the dead, decaying plant and animal remains to digest the organic material. Enzymes act on the complex organ ...
... down the complex organic compounds in dead matter (plants and animals) into simpler form which can be reused. Decomposers do not ingest their food. Instead they secrete digestive enzymes into the dead, decaying plant and animal remains to digest the organic material. Enzymes act on the complex organ ...
Eco Review Quiz Answers - hhs
... 2. What is the origin of all energy on Earth? The sun is the source of most of the energy on Earth. The Earth itself has some energy in the form of heat in its core (geothermal energy) and rotational energy (because it is spinning). But 99.9% of all life gets its energy directly (plants) and indirec ...
... 2. What is the origin of all energy on Earth? The sun is the source of most of the energy on Earth. The Earth itself has some energy in the form of heat in its core (geothermal energy) and rotational energy (because it is spinning). But 99.9% of all life gets its energy directly (plants) and indirec ...
Objective 3 Ecosystem and Interaction Energy Transfer 1
... of different species is symbiosis, or “living together”. There are several types of symbiosis. They are predation, parasitism, commensalism, and mutualism. 1. Predation is a relationship in which one organism preys on another as a source of food. An example of predation is an owl hunting a field mou ...
... of different species is symbiosis, or “living together”. There are several types of symbiosis. They are predation, parasitism, commensalism, and mutualism. 1. Predation is a relationship in which one organism preys on another as a source of food. An example of predation is an owl hunting a field mou ...
Ecology - Images
... – Herbivores: eat only plants/producers – Carnivores: eat only animals – Omnivores: eat both plant & animals ...
... – Herbivores: eat only plants/producers – Carnivores: eat only animals – Omnivores: eat both plant & animals ...
Ecology terms
... 2 ways to capture energy • Photosynthesis: process used by plants and other autotrophs to capture light energy and uses it to power chemical reactions • Chemosynthesis: process by which chemical energy is used to produce carbohydrates ...
... 2 ways to capture energy • Photosynthesis: process used by plants and other autotrophs to capture light energy and uses it to power chemical reactions • Chemosynthesis: process by which chemical energy is used to produce carbohydrates ...
My Ecology Notes
... Ecology is a branch of biology concerned with the study of the interactions of living organisms with each other and with their environment. An ecosystem is a community of organisms that interact with their environment. Biosphere is a region of the earth where life can exist.(atmosphere, hygros ...
... Ecology is a branch of biology concerned with the study of the interactions of living organisms with each other and with their environment. An ecosystem is a community of organisms that interact with their environment. Biosphere is a region of the earth where life can exist.(atmosphere, hygros ...
APESyearreviewPPT
... Only 10% of energy from one trophic level moves to the next trophic level Energy released is high potential energy molecules (like glucose) then converted to low potential energy molecules (like carbon dioxide) * concept of eating lower on the biomass pyramid ...
... Only 10% of energy from one trophic level moves to the next trophic level Energy released is high potential energy molecules (like glucose) then converted to low potential energy molecules (like carbon dioxide) * concept of eating lower on the biomass pyramid ...
LOTL 4 Ecoagriculture 2012
... natural systems to create a new ecosystem, including perennials and native species. By mimicking and re-creating an eco-system, biodiversity, stability, fertility, resilience and resistance are increased, there-by strengthening the overall agricultural system. ...
... natural systems to create a new ecosystem, including perennials and native species. By mimicking and re-creating an eco-system, biodiversity, stability, fertility, resilience and resistance are increased, there-by strengthening the overall agricultural system. ...
Analyzing Communities
... to one another. Every animal has its own habitat, or physical space to live, as well as a niche, or a role to play in that community. As a community ages, the organisms and the niches they occupy tend to change. This is called succession. In a new community, pioneer organisms (weeds, grasses, etc.) ...
... to one another. Every animal has its own habitat, or physical space to live, as well as a niche, or a role to play in that community. As a community ages, the organisms and the niches they occupy tend to change. This is called succession. In a new community, pioneer organisms (weeds, grasses, etc.) ...
Section 1
... Producers obtain energy from sunlight and store it as food energy. These organisms use the sun’s energy to turn water and carbon dioxide into food molecules in a process called photosynthesis. Certain bacteria produce their own food using the energy in hydrogen sulfide, a gas that is present in ...
... Producers obtain energy from sunlight and store it as food energy. These organisms use the sun’s energy to turn water and carbon dioxide into food molecules in a process called photosynthesis. Certain bacteria produce their own food using the energy in hydrogen sulfide, a gas that is present in ...
APES Review 2016
... Only 10% of energy from one trophic level moves to the next trophic level Energy released is high potential energy molecules (like glucose) then converted to low potential energy molecules (like carbon dioxide) * concept of eating lower on the biomass pyramid ...
... Only 10% of energy from one trophic level moves to the next trophic level Energy released is high potential energy molecules (like glucose) then converted to low potential energy molecules (like carbon dioxide) * concept of eating lower on the biomass pyramid ...
Agricultural Ecosystems
... remove unwanted species and maximise the growth of the species being farmed. Farmers need energy to plough fields, sow crops, remove weeds, suppress pests and diseases, feed and house animals, transport materials. The energy comes from: – Food: farm workers expend energy as they work. This energy co ...
... remove unwanted species and maximise the growth of the species being farmed. Farmers need energy to plough fields, sow crops, remove weeds, suppress pests and diseases, feed and house animals, transport materials. The energy comes from: – Food: farm workers expend energy as they work. This energy co ...
Dewey Notes 09 Life in the Ocean
... Species that live either on or in the ocean sediments are benthic. Bacteria and filter feeders that re-cycle nutrients are perhaps the most important. They are either predators or rely on chemosynthesis. In coastal regions, photosynthetic plants can “anchor” themselves and grow to macroscopic size. ...
... Species that live either on or in the ocean sediments are benthic. Bacteria and filter feeders that re-cycle nutrients are perhaps the most important. They are either predators or rely on chemosynthesis. In coastal regions, photosynthetic plants can “anchor” themselves and grow to macroscopic size. ...
Energy Flow
... b. chemosynthesis= the process of using inorganic compounds or chemicals to produce food (Ex: sulfur bacteria near hydrothermal vents). Autotrophs are the foundation of all ecosystems because they make energy for all the other organisms. 2. Heterotrophs (Consumers)= organisms that get their energy f ...
... b. chemosynthesis= the process of using inorganic compounds or chemicals to produce food (Ex: sulfur bacteria near hydrothermal vents). Autotrophs are the foundation of all ecosystems because they make energy for all the other organisms. 2. Heterotrophs (Consumers)= organisms that get their energy f ...
Living things and the environment
... dogs, use the soil itself as a home. • Billions of microscopic organisms such as bacteria also live in the soil. • These tiny organisms play an important role in the ecosystem by breaking down the remains of other living things. ...
... dogs, use the soil itself as a home. • Billions of microscopic organisms such as bacteria also live in the soil. • These tiny organisms play an important role in the ecosystem by breaking down the remains of other living things. ...
Ecosystems are always changing.
... like fire or flood, or it can be disturbed by human activity. A forest cleared or farmland abandoned can lead to secondary succession. The illustration below shows secondary succession following a forest fire. The damage, as bad as it is, is surface damage. Below the surface, seeds and plant roots s ...
... like fire or flood, or it can be disturbed by human activity. A forest cleared or farmland abandoned can lead to secondary succession. The illustration below shows secondary succession following a forest fire. The damage, as bad as it is, is surface damage. Below the surface, seeds and plant roots s ...
Ecosystems and Evolution
... water. The kangaroo rats cope with this dry environment by conserving water in their bodies. They eliminate very little water in their urine and feces. They do not sweat. They are active at night when it is cooler. Kangaroo rats are so effective at saving water, that they never need to drink it, the ...
... water. The kangaroo rats cope with this dry environment by conserving water in their bodies. They eliminate very little water in their urine and feces. They do not sweat. They are active at night when it is cooler. Kangaroo rats are so effective at saving water, that they never need to drink it, the ...
Chapter 4 Ecosystems and Communities
... Describes not only what an organism does, but also how it interacts with biotic and abiotic factors in the environment. It’s an organisms job. Resources: Any necessity of life, such as water, nutrients, light, food, or space. ...
... Describes not only what an organism does, but also how it interacts with biotic and abiotic factors in the environment. It’s an organisms job. Resources: Any necessity of life, such as water, nutrients, light, food, or space. ...
Water
... Only 10% of energy from one trophic level moves to the next trophic level Energy released is high potential energy molecules (like glucose) then converted to low potential energy molecules (like carbon dioxide) * concept of eating lower on the biomass pyramid ...
... Only 10% of energy from one trophic level moves to the next trophic level Energy released is high potential energy molecules (like glucose) then converted to low potential energy molecules (like carbon dioxide) * concept of eating lower on the biomass pyramid ...
Section 5-1: Energy Flow in Ecosystems Objectives: 1. Describe how
... o on new ______________________ created by ___________________________ eruptions o in areas exposed when a ___________________________ retreats o on any other surface that has not ___________________________ supported life Primary succession is much ___________________________ than secondary success ...
... o on new ______________________ created by ___________________________ eruptions o in areas exposed when a ___________________________ retreats o on any other surface that has not ___________________________ supported life Primary succession is much ___________________________ than secondary success ...
Ecosystem
An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment (things like air, water and mineral soil), interacting as a system. These biotic and abiotic components are regarded as linked together through nutrient cycles and energy flows. As ecosystems are defined by the network of interactions among organisms, and between organisms and their environment, they can be of any size but usually encompass specific, limited spaces (although some scientists say that the entire planet is an ecosystem).Energy, water, nitrogen and soil minerals are other essential abiotic components of an ecosystem. The energy that flows through ecosystems is obtained primarily from the sun. It generally enters the system through photosynthesis, a process that also captures carbon from the atmosphere. By feeding on plants and on one another, animals play an important role in the movement of matter and energy through the system. They also influence the quantity of plant and microbial biomass present. By breaking down dead organic matter, decomposers release carbon back to the atmosphere and facilitate nutrient cycling by converting nutrients stored in dead biomass back to a form that can be readily used by plants and other microbes.Ecosystems are controlled both by external and internal factors. External factors such as climate, the parent material which forms the soil and topography, control the overall structure of an ecosystem and the way things work within it, but are not themselves influenced by the ecosystem. Other external factors include time and potential biota. Ecosystems are dynamic entities—invariably, they are subject to periodic disturbances and are in the process of recovering from some past disturbance. Ecosystems in similar environments that are located in different parts of the world can have very different characteristics simply because they contain different species. The introduction of non-native species can cause substantial shifts in ecosystem function. Internal factors not only control ecosystem processes but are also controlled by them and are often subject to feedback loops. While the resource inputs are generally controlled by external processes like climate and parent material, the availability of these resources within the ecosystem is controlled by internal factors like decomposition, root competition or shading. Other internal factors include disturbance, succession and the types of species present. Although humans exist and operate within ecosystems, their cumulative effects are large enough to influence external factors like climate.Biodiversity affects ecosystem function, as do the processes of disturbance and succession. Ecosystems provide a variety of goods and services upon which people depend; the principles of ecosystem management suggest that rather than managing individual species, natural resources should be managed at the level of the ecosystem itself. Classifying ecosystems into ecologically homogeneous units is an important step towards effective ecosystem management, but there is no single, agreed-upon way to do this.