3/4 Daily Catalyst Pg.27 Symbiosis Pg. 26 is your food web activity we started yesterday! 1. In a desert biome, the fourth tropic level has .567kcals of energy. How much energy did the food chain start with? 2. Why do food chains typically end with secondary or tertiary consumers? 3. Why do large consumers such as a tertiary consumers exist in smaller numbers in the community?

3/5 Class Business Pg. 27 Symbiosis Quiz #7 on Friday Lab on Friday Lab moved to next TUESDAY (after the PLAN test) Outside, if weather permits (bring jacket) Paper due Friday, March 6th Must be printed out Must include rubric 3 test grades 3rd, nine-week grades due March 13th

3/5 Agenda Pg.27 Symbiosis Daily Catalyst Class Business Symbiosis notes Practice Ecology paper work time/timed 10 HW: ecology paper and quiz #7

Ecology Review What two factors make up an ecosystem? Abiotic and biotic factors Give an example of a community. Elephants, Lions, and tall grass Owl, spruce trees, and mice In what biome would buffalo and prairie dogs live? This biome is flat with cold winters and hot summers. Temperate grassland True/false: An organisms niche is not specific to that organism False

3/5 Class Business Pg.27 Symbiosis Today, we will be able to identify the relationships between organisms.

Symbiosis

Section 2.1 Summary – pages 35 - 45 Symbiosis Key Point #1: Symbiosis A close relationship between two organisms SYMBIOSIS SYM: together Bio: life SIS: means an action of occurring There are 3 types of symbiosis we are going to discuss. Section 2.1 Summary – pages 35 - 45

Symbiosis Draw this in your notebook!

Learning Symbiosis through Disney!! https://www.youtube.com/watch?v=oJVOLAc9Zc0

Symbiosis Mutualism

Section 2.1 Summary – pages 35 - 45 1. Mutualism This little fish is helping me by cleaning my teeth!!! Yeah!!! Both species benefit I’m eating the big fish’s food so he’s helping me too! Yeah!!! Let’s start with mutualism Section 2.1 Summary – pages 35 - 45

Mutualism and flowers! Flowers provide food for insects. Insects spread the seeds of flowers. Both organisms benefit!

Symbiosis Mutualism Commensalism Both benefit

Second Example https://www.youtube.com/watch?v=HG3L98NFyro

Symbiosis Mutualism Commensalism Both benefit

Section 2.1 Summary – pages 35 - 45 2. Commensalism One benefits and the other is neither harmed nor benefited In this picture, Spanish moss is growing on the trees. The moss benefits because it has a place to live, and the tree doesn’t care. Section 2.1 Summary – pages 35 - 45

More examples of Commensalism Clownfish hide in poisonous sea anemones which protect them from larger fish. The clownfish benefit, and nothing happens to the sea anemones.

Commensalism continued… This bird, called an egret rides on the back of large mammals like elephants. The egret benefits because it gets a place to live, and the elephant doesn’t care because it does not benefit or become harmed by the relationship.

One benefits, one is not harmed or helped Symbiosis Parasitism Mutualism Commensalism Both benefit One benefits, one is not harmed or helped

https://www.youtube.com/watch?v=-nO86Z_ajdw

One benefits, one is not harmed or helped Symbiosis Parasitism Mutualism Commensalism Both benefit One benefits, one is not harmed or helped

Section 2.1 Summary – pages 35 - 45 3. Parasitism One benefits and the other is harmed. WARNING- PICTURES! Section 2.1 Summary – pages 35 - 45

Section 2.1 Summary – pages 35 - 45 Parasitism Parasites have evolved in such a way that they harm, but usually do not kill the host species. Tapeworms are parasites. They attach to your intestines and suck out all of your food. the tapeworm benefits, and the host is harmed because they slowly starve to death. One of the ways to get rid of a tapeworm is to starve yourself and then place a piece of meat in front of your mouth. The tapeworm will smell the meat and climb up your throat and out of your mouth. Section 2.1 Summary – pages 35 - 45

Tapeworms continued!!!

A lungworm benefits while it harms the host. Other parasites! This is the head of a parasite. Parasites often grab on to the digestive tracts (intestines and stomachs) of their hosts. A lungworm benefits while it harms the host.

Guinea Worm-Another parasite!

Section 2.1 Summary – pages 35 - 45 Parasitism A predator is a type of consumer. Predators seek out and eat other organisms (prey). Predator Prey Section 2.1 Summary – pages 35 - 45

Symbiosis Parasitism Mutualism Both benefit Commensalism Both benefit One benefits, one is harmed One benefits, one is not harmed or helped

Both benefit in this relationship Practice Time! Both benefit in this relationship mutalism

One benefits and the other is harmed Practice Time One benefits and the other is harmed

One benefits and the other is not harmed or benefitted Practice Time One benefits and the other is not harmed or benefitted

Take 3 minutes to review population ecology and prepare for quiz #4!

Food Web Activity Directions: Once your have colored and labeled the organisms, follow the hints and begin making the food web. Be careful to connect organisms in the correct manner and watch the arrows! Answer the post-lab questions in your notebook. Noise: 1 (with a partner) Time: 15 minutes

Symbiosis W.S. Directions: Silently and independently, complete the symbiosis worksheet. We will grade this worksheet in class. Time: 10 minutes Noise: 0 (silent)