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Animal Diversity 2.pdf

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Reproduction<br />

Most are hermaphroditic with internal fertilization and separate<br />

ovaries and testes<br />

fertilized eggs deposited in cocoons, hatch into miniature adults<br />

Can reproduce asexually by fragmentation and regeneration<br />

No circulatory system, food and oxygen diffuse to tissues<br />

Excretory system is simple -<br />

“flame cells” propel fluids<br />

through tubules to outside of<br />

body - primarily for ridding<br />

body of excess water

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