BIO1108H CHAPTER 28 INVERTEBRATES – PHIL HIGHTOWER – ABAC QUESTIONS AND ANSWERS | BIO1108H CH. 28 STUDY GUIDE 2026/2027

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BIO1108H CHAPTER 28 INVERTEBRATES – PHIL HIGHTOWER – ABAC QUESTIONS
AND ANSWERS | BIO1108H CH. 28 STUDY GUIDE 2026/2027

Nutrition: Filter feeders,
Sexual Reproduction: Hermaphrodites Adults are sessile
Movement: Larva are mobile
Asexual Reproduction: by fragmentation
Body Support: Spongin-a protein, Spicules-of silica
or CaCO3 - ANS ✔✔Phylum Porifera characteristics

hole in top, water comes out
water comes in through pores - ANS ✔✔Osculum (sponges)

cavity of body - ANS ✔✔Spongocoel (Sponges)

Choanocytes and Amoebocytes - ANS ✔✔Cell types (Sponges)

flagellated, circulate water - ANS ✔✔Choanocytes

digest and transport nutrients in sponge - ANS ✔✔Ameobocytes

Jellyfish, Sea Anenomes, Corals - ANS ✔✔Phylum Cnidaria contains:

•True Tissues
•Mostly carnivorous
•Reproduction
-Sexual: spawn
-Asexual: budding - ANS ✔✔Phylum Cndaria (Characteristics)

•Diploblastic & Radial
•Two body forms in each species is common
-Medusa
-Polyp - ANS ✔✔Phylum Cnidaria (Body Organization)

Moblie, swim, or float - ANS ✔✔Medusa means...

Sessile, attached to substrate - ANS ✔✔Polyp means...

•Usually on tentacles
•Function: protection, food collection, locomotion - ANS ✔✔Cnidae are...

Nematocysts: stinging cnidae, most common - ANS ✔✔What is an example of an cnidae?

comb jellies, sea walnuts - ANS ✔✔Phylum Ctenophora consist of...

•Diploblastic & Radial

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