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Bio 125 Midterm 2 > Phylum Proifera > Flashcards

Phylum Proifera Flashcards

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Biology 101 flashcards
1
Q

What are Porifera?

A

Sponges

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2
Q

What are the characteristics of porifera? (there are 5)

A
  • No organs
  • No true tissues
  • Cellular level organization
  • Simplest animal
  • has pinacocytes and choanocytes
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3
Q

What are the 3 cell types of Porifera?

A

Pinacocytes: Protective outmost layer

Archaeocytes: Ameboid cells. in mesohyl

Choanocytes: “collar” calls (Flagellated)

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4
Q

What are the 3 body forms in Porifera?

A

Asconoid: Choanocytes line spongocoel. Water flows from ostia to spongocoel and out through osculum

Syconoid: Choanocytes line radial chambers in body wall. water flows from ostia-radial chamber-spongocoel-osculum

Leuconoid: choanocytes in chambers dispersed throughout body. water flows from ostia-inhalant canal-choanocyte chamber-exhalant canal - osculum

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5
Q

Porifera Reproduction?

A

Sexual and asexual

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Bio 125 Midterm 2 (6 decks)

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