

Characteristics of Living things
Presentation
•
Science
•
9th Grade
•
Medium
+1
Standards-aligned
Diane Ross
Used 21+ times
FREE Resource
10 Slides • 3 Questions
1
Flow of Energy Ecology

2
Flow of Energy
Ecology
3
Essential Question:
•What
are the producers and consumers in an ecosystem?
•How
does energy flow through an ecosystem?
•What
are food chains, food webs, and ecological pyramid models?
4
An autotroph is an organism that collects energy from sunlight or inorganic substances to make food. Autotrophs are the foundation of all ecosystems because the make energy available for all other organisms.
Autotrophs are the foundation of all ecosystems because the make energy available for all other organisms.
5
Multiple Select
Examples of Autotrophs
Sunflower
Venus Fly Trap
Willow Tree
Algae
6
Heterotrophs
A heterotroph, or consumer, is an organism that gets its energy by consuming other organisms.
An herbivore eats only plants
A carnivore eats animals
An omnivore eats both plants and animals
A detritivore eats fragments of dead matter
7
Models of Energy Flow
Food chains and food webs model the energy flow through an ecosystem.
Each step in a food chain or food web is called a trophic level.
Organisms at each level get their energy from the trophic level below them.
8
FOOD CHAIN
A food chain is a simple model that shows how energy flows through an ecosystem.
9
Food Web
A food web is a model representing the many interconnected food chains and pathways in which energy flows through a group of organisms.
10
Multiple Choice
Which is more complex?
Food Chain
Food Web
11
Multiple Select
Which is true
A Food Chain is a system of Food Webs
A Food Web is a system of Food Chains
12
BIOMASS
Biomass
is the total mass of living matter at each trophic level.
13
Flow of Energy Ecology

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