brachiopod and bivalves Flashcards by Gabrielle Parker | Brainscape

Q

what is the phylum and class of brachiopods?

A

phylum: brachiopoda
Class: articularta

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Q

umbo

A

area marking point of first growth

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Q

pedicle foramen

A

opening through which the pedicle emerges

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Q

deltidial plates

A

covers a triangular area below the foramen

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Q

growth lines

A

represent new layers of shell as the animal grows

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Q

commissure

A

where brachial and pedicle valves meet

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Q

adductor muscle

A

contact to keep the shell closed

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Q

diductor muscle

A

contract to open valves

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Q

what is the phylum and class of bivalves?

A

phylum: mollusca
class: Bivalvia

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Q

ligament

A

helps to hold the shell together

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Q

dentition

A

allows articulation of the valves

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Q

pallial sinus

A

indentation in pallial sinus

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Q

adductor muscle scar

A

scar where muscles are attached to shell

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Q

hinge line

A

plane of symmetry, in bivalves, where two valves are joined together

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