• Environmental Science Chapter 5 Study Guide How Ecosystems Work
• Holt Mcdougal Environmental Science How Ecosystems Work Study Guide

Chapter 5: How Ecosystems Work Environmental Science: Holt pages 124-141. Chapter 5 Study Guide. How Ecosystems Work Web Links. Cycling of Materials WebQuest. Jan 23, 2013 - Budapest San Francisco Chapter 5 Vocabulary How Ecosystems Work Section 2 & 3 Environmental Science Carbon cycle A process by which.

Start studying Environmental Science Chapter 5: How Ecosystems Work. Fungi and bacteria that break complex organic material into smaller molecules.

DAY 1 (10:26) Big Bio Colring Workbook & Chapter 5 How Ecosystems Work – – DAY 2 You Tube/Make Me Genius: (5:11) Section 5.1 Energy Flow in Ecosystems Objectives 1. Describe how energy is transferred from the sun to producers and then to consumers. Describe one way in which consumers depend on producers.

List two types of consumers. Explain how energy transfer in a food web is more complex than energy transfer in a food chain. Explain why an energy pyramid is a representation of trophic levels. 5.2 Vocabulary carbon cycle - a process by which carbon is cycled between the atmosphere, land, water, and organisms nitrogen- fixing bacteria - organism that can fix atmospheric nitrogen into chemical compounds nitrogen cycle - a process in which nitrogen is cycled between the atmosphere, bacteria, and other organisms phosphorus cycle - the movement of phosphorus from the environment to organisms and then back to the environment (2:40) The carbon cycle is a cycle where carbon is exchanged throughout the Earth’s atmosphere, the terrestrial biosphere, the oceans and sediments.

Carbon in living organisms turns to soil when they die, entering the sediment. Then, it might return to the biosphere in the form of a plant growing out of that soil which is eaten by an animal. That animal emits carbon in the form of carbon dioxide as a product of respiration. (1:56) The phosphorous cycle follows the movement of phosphorous through the biosphere. Phosphorous is found in many forms, both organic and inorganic, but is most commonly found in the phosphate ion. Phosphorous is essential for both plants and animals.

Environmental Science Chapter 5 Study Guide How Ecosystems Work

In biotic processes, plants remove phosphorous from the soil, animals eat plants and so on. In abiotic processes, phosphate is released by rocks due to weathering, then is deposited in the soil or water through leaching or runoff. (3:17) The nitrogen cycle follows the movement of nitrogen in its different forms. Nitrogenous gas makes up 80% of the atmosphere and most nitrogen enters into the ecosystem via nitrogen-fixing bacteria, but many organisms still struggle with nitrogen availability because they cannot use it in that form. The process of making nitrogen accessible is called nitrogen fixation. Many forms of bacteria are capable of this.

Holt Mcdougal Environmental Science How Ecosystems Work Study Guide

Many of these bacteria are found in the soil but some species have a symbiotic relationship with microbes which are capable of fixation. Other key processes include nitrification, denitrification, and ammonification (9:26) 5.2 (pages 25 & 26) (pdf pages 36 & 37) Other Animations: You Tube/Make Me Genius: (4:00) (3:56) DAY 10 Biology Coloring Book:, DAY 11 or &.chapter 5 vocabulary quiz tomorrow! DAY 12 Chapter 5 Vocabulary Quiz (10:07) want more info?

Section 5.3 How Ecosystems Change Objectives 1. List two examples of ecological succession. Explain how a pioneer species contributes to ecological succession. Explain what happens during old-field succession. Describe how lichens contribute to primary succession.

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