1. Enumerate what type of integumentary system each phyla possesses and describe its function.

Biology 2e
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ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
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Chapter28: Invertebrates
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1. Enumerate what type of integumentary system each phyla possesses and
describe its function.
Phylum
Function
Type of Integumentary
System
• Simple Integumentary
System
Composed of a single
layer of columnar
epithelial cells called as
pinacoderm
Integument do not have
true tissues; Parazoa
Thin integumentary system
Porifera
Produce mucus
to prevent
infection
• Can be ciliated
or flagellated to
move food
particles into
their body
With cnidocytes
which assist in
paralyzing prey
• With nerve cells
that trigger
Cnidaria
motor
responses
Platyhelminthes
Echinodermata
Mollusca
Nematoda
Arthropoda
Annelida
Chordata
In Phylum Chordata the
integument is soft and contains
no hard skeletal parts, but many
members have bony elements,
derived from the dermis, present
in the skin.
The integument
or skin protects
the body from
the entry of
foreign bodies
and prevent from
the mechanical
injuries
Transcribed Image Text:1. Enumerate what type of integumentary system each phyla possesses and describe its function. Phylum Function Type of Integumentary System • Simple Integumentary System Composed of a single layer of columnar epithelial cells called as pinacoderm Integument do not have true tissues; Parazoa Thin integumentary system Porifera Produce mucus to prevent infection • Can be ciliated or flagellated to move food particles into their body With cnidocytes which assist in paralyzing prey • With nerve cells that trigger Cnidaria motor responses Platyhelminthes Echinodermata Mollusca Nematoda Arthropoda Annelida Chordata In Phylum Chordata the integument is soft and contains no hard skeletal parts, but many members have bony elements, derived from the dermis, present in the skin. The integument or skin protects the body from the entry of foreign bodies and prevent from the mechanical injuries
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