Brachiopoda Flashcards
1
Q
What is the life form of most brachiopods?
A
Sessile or sedentary.
Solitary.
Active suspension feeders.
Benthic.
2
Q
What is a lophophore?
A
Respiratory and feeding organ.
3
Q
During what era are brachiopods most dominant?
A
The Paleozoic
4
Q
When did Strophomenata go extinct?
A
At the end of the Permian
5
Q
What is the scaling problem?
A
An evolutionary threshold for organism size. As organisms become larger, often their organs or skeletons are not capable of supporting the needs of the bigger organism, and so doesn’t propagate.
6
Q
Which Class of brachiopods lack pedicles?
A
Strophomenata.
7
Q
Name the 3 life modes of marine animals.
A
Planktonic - Floaters (Upper water column)
Nektonic - Swimmers (most of water column)
Benthic - live on (epifaunal) or in (infaunal) substrate.
