Paramecium...single cell
Hydra ...two layers of cells (tissues)
Planaria...three layers
Daphnia...organs
Structure, behavior, feeding, reproduction, and ecology
They do it all.
Next Monday we will continue our study.
Homework for Friday: Read chapter 1, Section 3: The Organization of Living Things, plus answer questions in section review (page 23) and chapter review (pages 26-27) 50 pts. for complete answers.
Also, in preparation for next week's quiz, here is the quizlet: http://quizlet.com/19171567/7th-grade-cells-multicellular-organisms-holt-flash-cards/
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