Term
|
Definition
| Phylum made of 5,000-10,000 species of sponges |
|
|
Term
Sponges can be...?
(appearance) |
|
Definition
Range in size from few mm across to well over a meter in diameter
Some are low, encrusting body forms
Some are taller, and more upright forms
Hard, course, abrasive texture
Or soft and flexible |
|
|
Term
|
Definition
| freshwater lakes and streams |
|
|
Term
| 4 Anatomical Similarities |
|
Definition
- All sponges are sedentary animals that are asymmetrical and lack tissues, organs, or organ systems (Bio functions occur at cellular levels)
- Simple bodies consisted of just four primary cell types arranged around a system of pores and canals
- All sponges feed by filtration
- Sponges have an internal skeleton made of microscopic spicules, or collagen fibers
|
|
|
Term
|
Definition
| aka collar cells, of sponges are virtually identical to one type of colonial protist living today, choanoflagellates |
|
|
Term
|
Definition
Has no folding to its body wall
A hollow tube just a few cells thick
Prominent osculum at the top
Small surface to volume ratio |
|
|
Term
|
Definition
Simple infolding to their body walls
Increased surface to volume ratio
Larger |
|
|
Term
|
Definition
Have body folds that are themselves folded
Have series of chambers connected by canals
Bath sponges |
|
|
Term
|
Definition
| Large central cavity that passes through the center of the sponge |
|
|
Term
|
Definition
| Pores on the sponges body surface that allow water to pass through |
|
|
Term
|
Definition
| ostia channel water down these to a larger # of tiny pores in the folds of the incurrent canals |
|
|
Term
|
Definition
The tiny pores are openings in these elongated, doughnut-shaped cells
|
|
|
Term
|
Definition
| the porocytes channel water into these flagellated chambers |
|
|
Term
|
Definition
| Specialized cells lining the interior surface of the radial canals that trap small food particles with their flagella and engulf them through phagocytosis |
|
|
Term
|
Definition
| mobile cells that reside in the gelatinous matrix between the choanocytes and the pinacocytes |
|
|
Term
|
Definition
| cells making up outer layer of the sponge |
|
|
Term
|
Definition
| water devoid of dissolved oxygen and food particles passes out of each radial canal through this larger opening into the spongocoel where it collects |
|
|
Term
|
Definition
| water is finally pushed out of this which is usually located at the top of the sponge |
|
|
Term
|
Definition
|
|
Term
| Water flow in sponges are important for...? |
|
Definition
- Feeding
- Respiration
- Elimination of cellular wastes
- Reproduction
|
|
|
Term
|
Definition
a form of asexual reproduction
A densely-matted, hardened ball containing amoebocytes surrounded by a coating of collagen and spicules |
|
|
