Commensalism relationship pictures to draw

Symbiotic Relationships | Common Sense Education

commensalism relationship pictures to draw

Each student is given a picture of a symbiotic relationship. In the bottom left corner, students will draw a picture to help them remember the concept, and in the. Commensalism being a type of symbiotic relationship between organisms, other types of symbiotic relationships include mutualism, in which both the organisms involved benefit from each other, and parasitism, where one of the organisms is benefited, while the other is harmed. Commensalism is a relationship between two organisms where one receives a Bacteria (Acetobacter oxydans) - These make fructose by oxidizing mannitol.

ScienceStruck Staff Last Updated: Mar 22, Many instances of commensalism are surrounded by controversies, as there is always a possibility that the commensal host is also being benefited or harmed in some or the other 'not-yet-known' ways.

However, here are some of the widely accepted examples of commensalism found in nature. Examples of Commensalism Cattle Egrets and Livestock One of the popular examples of commensalism is the relationship between cattle egrets and livestock. The cattle egret is a common species of heron that is found in most regions of the world, and is mostly seen moving along with herds of cattle.

This bird moves about in the pastures, and follows livestock such as cattle and horses. The cattle egret eats up the insects hiding under vegetation close to the grounds, which get stirred up when the cattle walk through them.

Orchids Growing on Branches of Trees Orchids belong to a family of flowering plants that form a commensal relationship with the trees. It is a well-known epiphytic plant that grows on the branches or trunks of other trees. Orchids are usually found in dense tropical forests.

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They form their base of attachment on the branches of trees, and benefit by getting adequate sunlight and nutrition that flows down the branches. The orchids do not grow to a large size, and thus the host tree is not harmed in any way.

Remora Fish and Sharks The remora, also called suckerfish, belongs to a family of ray-finned fish. It is a small fish growing up to a size of 1 to 3 feet. The remora forms a special relationship with sharks and other sea organisms like whales and turtles.

commensalism relationship pictures to draw

It has special suckers attached to its fins. It attaches itself to the bodies of sharks, and uses the shark for transportation as well as protection from its predators. It also eats up the scraps of food that are left over when the shark eats its prey.

Pseudoscorpions and Beetles Pseudoscorpions are scorpion-like insects that usually grow to less than one centimeter in length.

Examples of Commensalism for a Better Understanding of the Concept

They are different from other types of scorpions in the way that they do not have stingers. Some species of the pseudoscorpions hide themselves under the wing covers of large insects like beetles.

This gives them protection from their predators, and also provides them a means of transportation over a larger area. Because of its small size and lack of sting, it does not harm the beetle in any way.


Monarch Butterfly and Milkweed The Monarch butterfly is a well-known type of butterfly found commonly in the North American region. At the larval stage, it forms a commensal relationship with certain species of milkweeds.

The milkweeds contain a poisonous chemical known as cardiac glycoside, which is harmful to almost all vertebrates.

  • Symbiotic Relationships

The Monarch stores these poisonous chemicals in its body throughout its lifespan. When a bird eats a Monarch butterfly, it finds it distasteful, and gets sick. Which relationship is yours? Ask students to place their picture under the heading they think represents their picture. Video clips on symbiotic relationships Activity: Assessing Ask students to divide their journal page into 3 columns. Ask students to title the page symbiotic relationships. Explain to students that they will be observing videos of the 3 different types of symbiotic relationships.

Note which organism benefits, is harmed or is unaffected. Use the classroom computer to project the following site: Ask students to give a brief definition for the word symbiosis and have them place a new term at the heading of each section of their journal that identifies each of the 3 relationships: Ask a few volunteers how they identified each section. Select one video from each section to share with students.

Take time after the clip to see under which heading they classified the relationship and why.

15 INCREDIBLE Mutual Animal Relationships

Reading Send students home with the edhelper. Ask students to read through the article and answer the questions that follow.

commensalism relationship pictures to draw

Remind students that we will be discussing the article when they come back the next day. Students will be creating Frayer models for each of the terms. Have students draw a large box in their journal. Ask them to divide the box into 4 parts.

Examples of Commensalism for a Better Understanding of the Concept

Ask students to write the name of the term in the center of their box. In the top left corner they will be describing the concept. In the top right corner they will be adding something that will help them remember the concept. In the bottom left corner, students will draw a picture to help them remember the concept, and in the bottom right corner they will give an example of the term. With a partner have students complete the description for each concept. Stop and discuss the relationship, if it is mutualism, parasitism, or commensalism.

Have students add new information to their Frayer models. Other video links can be found at: Assessing Review the terms symbiosis, mutualism, commensalism, and parasitism with students.