March 28, 2011 Update your table of contents: 81. Environmental Science Unit Cover Page 82. Environment and Ecology Paragraph – Do Now 3/ Nature Walk Card Sort 84. Ecology Definitions 85. Ecology Vocab Mind map 86. Interactions within the Environment Reading 87. SQ3R (reading guide) 88. Interactions WS (HW) 89. Nature Walk News Article 90.Build-Your-Own Food Web 91.Food Web Analysis - Do Now 3/25 Please DO NOW

Today’s Schedule Agenda: 1.Comp Book Update 2.Ecology Dating Game 3.Symbiosis Definitions Essential Questions What types of relationships exist in the environment? Homework: Symbiosis Worksheet March 28, 2011

Match the pairs of organisms based on the description of their needs. Be sure at least one of the organisms is getting exactly what it wants. Ecology Dating Game

March 28, 2011 Examine your matches. Use the pairs to complete the table. Symbiosis Definitions – Page 92 Type of Symbiosis Organism One (Benefits, Hurt, No Effect) Organism Two (Benefits, Hurt, No Effect) Sample Pair and Description Parasitism Commensalism Mutualism

March 28, 2011 Examine your matches. Use the pairs to complete the table. Symbiosis Definitions – Page 92 Type of Symbiosis Organism One (Benefits, Hurt, No Effect) Organism Two (Benefits, Hurt, No Effect) Sample Pair and Description Parasitism BenefitsHurt Commensalism BenefitsNo Effect Mutualism Benefits

March 28, 2011 Symbiosis Definitions – Page 92 Symbiosis – a very close relationship between 2 organisms where at least one organism benefits. Parasitism – One organisms benefits while the other is negatively effected. Commensalism – One organism benefits with no effect on the other. Mutualism – both organisms benefit from the relationship.

March 28, 2011 Tapeworm: Humans are infected by tapeworms when they ingest the eggs or larvae. The worm grows inside the body and attaches to the wall of the intestine. It grows segments called proglottids that absorb nutrients from the intestines to feed the worm. Some of these segments will be passed out of the body with the fecal material – this is usually how a person realizes they are infected. Why is a tapeworm infection harmful to the host? Parasite of the Day!!!

March 28, 2011 Use the clues to label each organism in the pair based with a +, -, or 0 based on how it gets along with the other organisms. After all pairs are labeled, determine if each is an example of mutualism, commensalism, or parasitism. Homework

March 29, 2011 Hookworms: Hookworms infect the intestines of many types of mammals where they feed on blood after hooking into the intestinal wall. The larvae of the worms get into the body through the skin and continue to grow inside the body. What type of harm will hookworms do to the host? Parasite of the Day!!!

March 30-31, 2011 Page 93 What is carrying capacity? What factors determine carrying capacity? What happens if a population exceeds its carrying capacity? Please DO NOW

Today’s Schedule Agenda: 1.Carrying Capacity Definition 2.Lesson of the Kaibab Analysis 3.Fishing for Goldfish Essential Questions What types of relationships exist in the environment? Homework: Complete lab questions March 30-31, 2011

The Lesson of the Kaibab

March 30-31, 2011 Fishing for Goldfish

March , 2011 Mistletoe: Mistletoe is a parasitic plant that infects many types of trees and shrubs when its seeds are deposited on the host plant in bird feces. The mistletoe grows attached to the host using it for water and nutrients. How does mistletoe harm the host plant? Parasite of the Day!!!

March 30-31, 2011 Complete the Fishing Analysis Questions. Homework

April 1, 2011 Please pick up a handout on your way to your seat. Be prepared to discuss your answers. Please DO NOW

Today’s Schedule Agenda: 1.Do Now 2.Move Over Lab Background Plant Seeds Essential Questions What types of relationships exist in the environment? Homework: No homework April 1, 2011

Move Over! Lab

April 1, 2011 Toxoplasmosis: Toxoplasmosis is a protozoan (single-celled organism) that infects the cells of many warm-blooded animals. The main host of toxoplasmosis is a cat, but it can be passed to other organisms through infected feces. Infected people often show flu-like symptoms. Parasite of the Day!!!