Texas Essential Knowledge and Skills Teaching Resources

Science 4.9

Organisms and environments. The student knows and understands that living organisms within an ecosystem interact with one another and with their environment. The student is expected to:

  • (1) investigate that most producers need sunlight, water, and carbon dioxide to make their own food, while consumers are dependent on other organisms for food; and
    • (A) describe the flow of energy through food webs, beginning with the Sun, and predict how changes in the ecosystem affect the food web.

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