[Free Registration/Login may be required to access all resource tools.] Are you on the basketball team? Are you a cheerleader? Do you play an instrument in the band? Your niche would be your role or place in the school. Organisms also...

Interspecific competition in an ecosystem is explained, along with the different ways it can manifest itself. Includes examples in different types of biomes.

This short video explains how warmer temperatures in the Arctic are transforming the ecosystem and affecting the Athabaskan people, threatening their way of life. [2:59]

Answer these ten interactive questions about ecological feeding relationships by choosing the correct image that completes each food chain.

In this lesson, students compare various types of relationships among organisms (i.e., biotic interactions). Students will: explain the roles of producers and consumers, and predators and prey in an ecosystem. Explain the levels of order...

Students explore the biosphere's environments and ecosystems, learning along the way about the plants, animals, resources and natural cycles of our planet. Over the course of lessons 2-6, students use their growing understanding of...

Explore the role of pollinators in their ecosystems, develop a written response to one of three questions about the importance of honeybees, gather evidence about Coal Country BeeWorks' efforts to reclaim surface mining sites,.

Students use an interactive map to compare environmental conditions in different estuaries around the National Estuarine Research Reserve System. A second activity allows students to use the Graphing Tool to find, select, and graph data...

[Free Registration/Login Required] This flipchart will help students to learn about ecosystems and the living and nonliving things that interact in them.

A field experience where students undergo an exploration in a natural environment. They are introduced to the concepts of species, population, community, ecosystem, niche, and biosphere.

An introduction to key concepts about the ocean, its ecosystems, and zones. With interactive flash cards that open in new windows to help you learn more.

The increase of organizations that rely on both technology and human interaction has given way to more holistic approaches grounded in sociotechnical systems theory. Appreciating how these systems function together helps you visualize...

Explore the rich habitats and natural beauty of the California landscape in this interactive video.

Students review the study of living things and make connections back to Earth's systems. This unit focuses on how various species, grouped in populations and communities, work with the nonliving things around them to ensure survival.

Describes the role of mutualism in an ecosystem and the different types, and provides examples.

Discover the ecological relationships of six different organisms living in the Alaskan kelp community. The site also contains an interactive map showing the time line for the spread of the Exxon Valdez oil spill.

In this interactive practice exercise, students fill in the blank with the vocabulary words when given their definitions. There are 99 science vocabulary words in the list.

Learn how mutualism benefits the organisms in a symbiotic relationship and what the different types of mutualism are. Provides lots of examples.

Follow in Darwin's footsteps to the heart of our planet's largest rainforest, guided by some of the world's leading biologists. Content uses pictures, video, real-time interactions, and activities, to fully explore the rain forest from...

In this amazingly comprehensive interactive tutorial you will learn about the characteristics and features of the different biomes on our planet.

Students learn about the feeding relationships in an estuary ecosystem with this interactive energy pyramid activity. A second activity involves research and a video clip to elaborate the learning.

This interactive resource adapted from NASA describes the different temperature, precipitation, and vegetation patterns in seven biomes: coniferous forest, temperate deciduous forest, desert, grassland, rainforest, shrubland, and tundra.

This lesson will discuss the interactions of and interdependence among living things. It is 2 of 4 in the series titled "Living Organisms and Their Environment."

This lesson will discuss the interactions of and interdependence among living things. It is 3 of 4 in the series titled "Living Organisms and Their Environment."