Its the little tunnels that let in and release water
Sponges with a leuconoid body type are the most efficient in terms of maximizing the surface area for nutrient exchange and can grow to larger sizes compared to other body types like asconoid or syconoid. These sponges have complex canal systems that increase the efficiency of nutrient uptake and waste removal.
Spongest have the most complex body systems and they are very flowwy
No clue, but here is a hint, look in the book!
Leuconoid is a term used to describe a specific type of body plan found in certain sponges, characterized by a complex structure with multiple oscula and an intricate system of canals. In leuconoid sponges, the choanocyte chambers are more numerous and interconnected, allowing for increased surface area for filter feeding and greater efficiency in water flow. This body plan is typical of larger and more complex sponges, enabling them to thrive in various aquatic environments. Overall, leuconoid sponges represent the most advanced structural organization among sponge types.
Skeleton made up of spicule supports most sponges .
Most sponges are marine, but there are some freshwater varieties
Organ systems are most complex and fragile starting with the atoms. The most complex organ systems is the organism. In between are the molecules, cell, tissue, organ, and organ system.
Saturn
organ system
nerve chord
Sea Sponges, They Absorb The Most Water Or Any Fluid And Synthetic Sponges Don't Have As Much Absorbency, Also They Don't Have As Many Holes.
The group of organ systems organized from most complex to least complex typically starts with the nervous system, then the circulatory system, followed by the respiratory, digestive, excretory, endocrine, and finally the integumentary system.