Texas Education Agency
Texas Gateway: Symbiosis
Given scenarios or illustrations, the student will determine the nature and type of relationship between organisms, including parasitism, commensalism, mutualism, and competition.
PBS
Pbs Learning Media: Coral Reef Connections
Dive in and explore what makes this beautiful world so fragile. In this Web feature, from the PBS series "Evolution," discover how coevolution has shaped the ecological relationships among reef creatures.
University of Nebraska
University of Nebraska State Museum: Brazil Nut Tree Community
Investigate the numerous symbiotic relationships that exist between the Brazilian Nut Tree and six other organisms in its community.
Scholastic
Scholastic: Study Jams! Science: Ecosystems: Symbiosis
Symbiosis is featured in this video to help students understand the process through an engaging video. Know terms like parasites and mutualism to be successful on the test.
CK-12 Foundation
Ck 12: Biology: Interdependence of Living Things
[Free Registration/Login may be required to access all resource tools.] Covers interactions between organisms.
CK-12 Foundation
Ck 12: Earth Science: Evolution of Eukaryotes to Multicellular Life
[Free Registration/Login may be required to access all resource tools.] The evolution of eukaryotic cells and multicellular organisms.
MadSci Network
Symbiotic Relationships in the Deciduous Forest
A brief definition of symbiotic, followed by explanations of mutualism, commensalism, and parasitism.
Science Struck
Science Struck: Symbiotic Relationships in the Deciduous Forest
Explains what a symbiotic relationship is, the five main types of symbiosis, and provides examples of symbiotic relationships among living things in a deciduous forest.
CommonLit
Common Lit: "Can't We All Just Get Along?" by Bird Brain Science
Earth is full of a variety of living things that interact with one another in many different ways. This informational text explains the various different types of relationships they can have with one another. It also offers guided...
Science Struck
Science Struck: Examples of Commensalism
Describes examples of commensal relationships in the natural world.
CK-12 Foundation
Ck 12: Life Science: Symbiosis
[Free Registration/Login may be required to access all resource tools.] Symbiosis describes a close and long-term relationship between different species. At least one species will benefit in a symbiotic relationship. There are three...
CK-12 Foundation
Ck 12: Earth Science: Evolution of Eukaryotes to Multicellular Life
[Free Registration/Login may be required to access all resource tools.] The evolution of eukaryotic cells and multicellular organisms.
CK-12 Foundation
Ck 12: Biology: Community Ecology Study Guide
This comprehensive study guide covers the main terms and concepts needed for a unit on community ecology.
CK-12 Foundation
Ck 12: Life Science: 12.9 Symbiosis
Learn about the many types of symbiotic relationships in an ecosystem.
PBS
Pbs Teachers: Volcanoes of the Deep
Discuss how individual organisms and groups of organisms interact with each other, and research and classify symbiotic relationships between individual organisms of different species.
BioMan Biology
Bio Man Biology: Angry Aliens: Ecology
Teach aliens about ecology as you play this game, and review your own understanding in the process. Topics covered include levels of organization, ecological relationships, nutrition and energy, cycles (water, carbon, and nitrogen), and...
Sophia Learning
Sophia: Symbiotic Relationships: Lesson 2
This lesson will introduce the three types of symbiotic relationships and give examples of each. It is 2 of 4 in the series titled "Symbiotic Relationships."
Sophia Learning
Sophia: Symbiotic Relationships: Lesson 4
This lesson will introduce the three types of symbiotic relationships and give examples of each. It is 4 of 4 in the series titled "Symbiotic Relationships."
Biology 4 kids
Biology4 Kids: Relationships Between Organisms
Species interact every day. That interaction is a vital part of how organisms develop and change over time. When you study species, it is important to watch the way they interact with their surroundings. There are four basic types of...
Science Struck
Science Struck: Symbiotic Relationships in the Rainforest
Explains what mutualism, commensalism, and parasitism are.
Science Struck
Science Struck: Symbiotic Relationships in the Tundra
Explains what mutualism, commensalism, and parasitism look like in a tundra biome.
Science Struck
Science Struck: Symbiotic Relationships in the Desert
Describes three types of symbiotic relationships that can be found in a desert biome.
Fact Monster
Fact Monster: Animal Partnerships
A description of animal relationships of mutualism (symbiosis), commensalism, and parasitism. A real life example is given for each type.