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Starfish & Spiders PowerPoint Presentation
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Starfish & Spiders

Starfish & Spiders

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Starfish & Spiders

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  1. Starfish & Spiders Compare and contrast the following different species of invertebrate

  2. Similarities • Both of them carry their eggs until it hatches • Both doesn’t have spine. ( Invertebrate) • Both can act as a food for human • Both heterotrophy

  3. 1 to 9 follow the existing staging system for the spider Achaearaneatepidariorum, and stages 10 to 21 provide a high-resolution description of later development Differences Starfish Spider • Both Sexual, Asexual reproduction • Do not care of the young after birth because they don’t have brain • After it is fertilized, the thin layer o f clearly visible liquid form a body shape which is a young starfish • Only Sexual reproduction • Take care of the offspring by sharing food, by feeding them ooze from their mouth. • When they hatch, mother spider takes care of everything, but when it’s time to be independent, they learn how to hunt by itself. • There are total 25 stages.Stage 1 to 9 work on stage, from stage 10 to 21 provide high resolution. • Once the eggs are fertilized, the cell’s embryo grows as a larva form ( 15 stages)

  4. Embryo development of starfish Spider’s embryo Young Spiders attached to the mother’s back A Young Starfish