Question

Question 5 1pt While snorkeling, you find a sessile, fleshy organism with an incurrent and excurrent opening. You collect it and find out that it is an invertebrate. Later, your instructor says, "you ar more closely related to that invertebrate than any other." What is it? Sea Walnut Sponge Anemone Tunicate Sea urchin • Previous

the word cut off is you are*

Answer 1

Solution

The given animal is sponge because

• it has incurrent and excurrent openings like pore/ostia and osculum respectively.
• it is a very different invertebrate having no tissue layer or coelom.
• sponges are sessile and fleshy.
• tunicates are vertebrates.
• sea anemone has no such incurrent and excurrent openings.
• Sea walnut dont have such characteristics given in question.
• Sea anenone dont have incurrent and excurrent system rather it has one opening only.
• Sea urchins are not sessile.