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Trophic Level: Who eats who in the food chain Steps along which materials & energy pass Shown as food chains, webs & pyramids
Food Chain: ONLY ONE source of food Less stable
Food Web: More than one choice of food Several food chains linked together More stable
Tertiary Secondary Primary consumer Producer
Tertiary Secondary consumer Primary consumer Producer
Illustrates? Food Chain of numbers of biomass of energy
10% of the energy is passed on as biomass 90%: Lost as Waste Used for Reproduction
Magnification= to increase Concentration of toxins Are magnified In upper pyramid levels
the top consumer requires more biomass and concentrates the toxin
Human Shark Bass Smelt Algae Who is most susceptible ?
Cycles in Nature:
Energy Flows ………... Flows in one direction Will never return to the same form Conservation of Energy: Energy changes form But is never lost
Matter cycles………….. Matter can be recycled Matter can be reformed The basic building blocks are reused Conservation of Matter
Tracing the cycling of matter…..
Energy & Matter in an Ecosystem:
Food Chains and Food Webs Energy Flow in Nature. Energy Roles An organisms energy role in an ecosystem may be that of a producer, consumer, or decomposer.
Energy Flow in Ecosystems 3.4. Energy Flow When an animal eats a plant, energy is transferred from plant to animal The same thing happens when an animal.
5.1: Communities Topic 5: Ecology & Evolution Miss Friedman.
2.1 – Energy Flow in Ecosystems. Energy flow in ecosystems Biomass is the total mass of all living things in a given area. – Biomass can also refer to.
What is Ecology?. * Ecology is the study of interactions among organisms and between organisms and their environment.
Chapter 54 Ecosystems. n Ecosystem - consists of all the organisms living in a community as well as all the abiotic factors with which they interact.
Biology AHSGE Standard XIII- Matter and Energy Transfer.
Ecology. Ecology is the study of the interactions of living organisms with one another and with their physical environment (soil, water, climate…) ECO.
Energy in Ecosystems Food Chains, Food Webs and Energy Pyramids Courtesy:
Energy Flow through a Food Chain. ENERGY FLOW Autotrophs vs. Heterotrophs
III. Ecosystem Def. - the combination of biotic and abiotic components through which energy flows and materials cycle (usually a self-contained unit,
I. Energy Flow A. Producers / Make their own food through photosynthesis / Examples: Plants, algae A. Producers / Make their own food through photosynthesis.
QOTD - NO MARK QUIZ 1. The number of deer in a forest is called… THE POPULATION THE POPULATION 2. Which does not belong? Sunshine, Water, Dirt or a rotting.
Topic 5.1 / Option G.2 Ecosystem Ecology 1 Matter and Energy Flow in Ecosystems Assessment Statements: , G G.1.10, G.2.1 – G.2.5.
Energy flows through ecosystems. Chapter 1 Section 3.
Energy Flow Through an Ecosystem Food Chains, Food Webs, Energy Pyramids.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu UNIT ONE: General Ecology and Population Part 1: Content Food Chains,
Ecology Concepts F Ecosystems. Relationships, I F Trophic structure / levels ~ feeding relationships in an ecosystem F Primary producers ~ the trophic.
Energy Flow 3-2 Biology Flora. Producers Producers/autotrophs – organism that can capture energy from sunlight or chemicals and use it to produce its.
Ecology. What is Ecology? Ecology is the study of interactions among organisms and between organisms and their environment. Ecology is the study of interactions.
Ecosystems and Biomes G.2.1-G.2.5. Primary Production in Ecosystems Energy hits the earth in the form of solar radiation. A small percentage of this.
Photosynthesis: use of chlorophyll. Energy storing process. 6 CO H 2 O + solar energy C 6 H 12 O O 2 Cellular Respiration: Aerobic Respiration:
PAP Bio 9/5-6 WU Finish experimental design/ set up Eco II PP HW: no change.
Part 2 - Food Chains and Webs: If an ecosystem is to be self-sustaining it must contain a flow of energy. Those life activities that are characteristic.
Chapter 2 Principles of Ecology You will learn: 1. What an ecologist does. 2. Some important aspects of an organisms environment. 3.Trace the flow of energy.
Food Webs. Community All organisms inhabiting a particular area.
Roles in an Ecosystem Producers Consumers (herbivore, carnivore, omnivore, decomposer, detrivore) VideoVideo: The Importance of Decomposers Write down.
Section 13-6 Pyramid Models Write everything that is underlined.
Click on a lesson name to select. Chapter 2 Principles of Ecology Section 1: Organisms and Their Relationships Section 2: Flow of Energy in an Ecosystem.
Ecology. Ecology Ecology is the study of interactions between different kinds of living things and their environment. Ecology is the study of interactions.
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