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Sponges - page 2
What evolutionary innovation is associated with the simplest animals and the sponges?
Sponges and cnidarians were the first animals to evolve because they have primitive and simple body structure. What is significant about sponges in th...
Why are sponges and other animals with irregular body symmetry usually stationary?
Why do sponges have no symmetry?What type of symmetry body plan do sponges have?How can body symmetry affect movement?Why are sponges considered anim...
Why are adult sponges said o be sessile animals?
All adult sponges are sessile, meaning they are attached to some surface. Since they cannot move, sponges cannot pursue their food. Instead, they are ...
Which of the following characteristics make sponges different from other animals?
Sponges are similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells. Unlike other animals, the...
How do sponges excretation?
Excretion occurs through both the oscula and the surface of the sponge. Special amoebocytes disintegrate in the mesohyl, and their granules are expell...
What is a syconoid?
Syconoid sponges are similar to asconoids. They have a tubular body with a single osculum, but the body wall is thicker and more complex than that of ...
Are Tube sponges only tube shaped?
What type of sponge is a tube sponge?What is tube sponge?What do tube sponges look like?How do you identify a sponge?Are sea squirt sponge?What is th...
What are tube sponges?
Aplysina fistularis, commonly known as the yellow sponge or yellow tube sponge, is a species of sea sponge in the order Verongiida. Aplysina fistulari...
How do you know if a sponge is male or female?
How is a sponges gender determined?Are sexes separate in sponges?Do sponges reproduce asexually or sexually?How do sponge reproduce?Is Demospongiae a...