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Yes, they are called spicules, not pores or spiracles as many people think.
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∙ 12y ago
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Spicules
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What are the sharp spines called in all sponges?
Spicules
What is the sharp structure called in a sponges body?
They are called spiracles
What is a sessile feeder?
(sponges) animals with no tissue and with no definite body plan; they are sessile (they dont move), and they are filter-feeders; they contain choanocytes, which are flagellated cells that serve to keep water moving in through pores in teh sides of the body and out through a large opening at the top; other cells called amoebocytes secrete supporting structures which help hold the sponge upright, these structures can be hard, sharp, crystal-like structures called "spicules" Animals(sponges) with no tissue. They are sessil (they dont move), and are filter feeders. They house choanocytes, which are flagellated cells that keep water moving through pores in ten sides of the body.
What are the structures for defense for golden retrievers?
the structures of defense can be their claws and sharp teeth
What structures might help a rattlesnake escape predators?
the answer will be sharp jaws and speediness
What special structures do animals have that allow them to defend themselves?
Hard shells, sharp claws, powerful legs, sharp teeth, etc. etc.
Why do nudibranches eat toxic sponges?
The reasons why any animal eats a particular organism is never clear. A top reason why Nudibranchs might eat 'toxic sponges' is that there was not much else available to eat and it was easy to eat the sponges. These sponges were a niche that was unfilled and the Nudibranches adapted to take it. The sponges are still partially toxic to Nudibranchs! They often have specially lined stomachs to protect them from the sponges sharp spicules and the toxins from the sponge accumulate in them. When a predator tries to eat a nudibranch it gets a nasty mouthful of these toxins.
how to keep our vision sharp?
Eat carrot contain vitamin A
What special structures do pomelo and camachile trees have that keep animals away from them?
they have sharp thorns
Which key signature has d sharp g sharp and a sharp?
No key signatures contain only those three sharps. With the A-sharp, it could be the keys of B major, F-sharp major, or C-sharp major (or any of their relative minor keys).
What special structures do cheetahs have?
There are a number of special structures that cheetahs have. These includes the shape of their body, strong limbs, sharp teeth and compound eyes among others.
What is the structures of defense for a cat?
Cats have sharp teeth and claws. They can run fast and climb trees.
