Table of Contents
- 1 What is the path of energy flow through the trophic levels?
- 2 What term is used for each step in the transfer of energy and matter within a food web?
- 3 Why the pyramid of energy is always upright?
- 4 What are the most important transformers of energy in ecosystems?
- 5 Does pyramid of energy is always upright?
What is the path of energy flow through the trophic levels?
Chapter 16 Reading Guide 2
| A | B |
|---|---|
| The path of energy through a trophic level is called a _______. | food chain |
| The lowest trophic level of any ecosystem is occupied by the _________. | producers |
| Primary producers are also called _________because they only eat plants. | herbivores |
| Herbivores must be able to digest ________. | cellulose |
What is a single pathway in which energy is transferred in an ecosystem?
FOOD CHAIN. A SINGLE PATHWAY OF ENERGY TRANSFER BETWEEN ORGANISMS IN AN ECOSYSTEM.
What term is used for each step in the transfer of energy and matter within a food web?
In a food chain, each organism occupies a different trophic level, defined by how many energy transfers separate it from the basic input of the chain.
Is a diagram in which each trophic level is represented by a block of space proportional to the amount of energy stored within that trophic level?
Chapter 17 Ecosystems – Vocabulary
| A | B |
|---|---|
| energy pyramid (17-2) | a diagram in which each trophic level is represented by a block with a width proportional to the amount of energy stored in the organisms at that trophic level |
| food chain (17-2) | the path of energy through the trophic levels of an ecosystem |
Why the pyramid of energy is always upright?
In an ecosystem, food is passed from one trophic level to the next higher trophic level. This transfer results in the passage of energy through these trophic levels and some energy is always lost as heat in each step to the atmosphere and never goes back to the sun. Thus, the pyramid of energy is always upright.
What is the first step in energy flow through an ecosystem quizlet?
Producers make up the first level. Consumers make up the higher levels. A series of steps in which organisms transfer energy by eating and being eaten.
What are the most important transformers of energy in ecosystems?
What are the most important transformers of energy in ecosystems? plants and algae.
How does an abiotic component affect a community?
Abiotic factors affect the ability of organisms to survive and reproduce. Abiotic limiting factors restrict the growth of populations. They help determine the types and numbers of organisms able to exist within an environment.
Does pyramid of energy is always upright?
Pyramids of energy are always upright, since energy is lost at each trophic level; an ecosystem without sufficient primary productivity cannot be supported. All types of ecological pyramids are useful for characterizing ecosystem structure.