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∙ 12y ago
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What can you about an organism with no tissues?
A unicellular organism lacks tissues, organs, and organ systems.
Do all organisms have organs tissues and organ systems give examples to support your answer?
No. Single celled organisms such as amoeba obviously don't have them. Slightly more complex organisms such as sponges don't have organs or organ systems though they might be said to have tissues.
How can sponges affect human life?
the skeletons can be used as sponges to wash dishes
Which group within kingdom protista probably gave rise to sponges?
Amoebas gace rise to sponges since the wall of sponges contain amoebocytes.
Do the cells of a sponges have cell walls?
No. Sponges are animals and animal cells do not have a cell wall.
Body covering of sponges?
Ostia
What is the meaning of dermal ostia IN ZOOLOGY?
Ostia are incurrent pores, found on organisms in the Phylum Porifera (aka sponges). Basically; they are body openings on sponges.
What in is one of the cells in sponges that permits water to enter the cavity called?
ostia
What is the function of the oscula?
Oscula are outlets of water in sponges . Water enters through the ostia.
What is the respiratory organ of sponges?
In mammals and fish it is lungs
Difference bw ostia and osculum?
ostia is the inlet into the sponge and osculum is the outlet through which the entered water etc. moves out
What are the main characteristic of a sponges?
My science teacher said that it is sessile and it reproduces anisexually and some other way
What level of organization in missing in sponges?
tissues, organs, and organ system
What type of body covering does sponges have?
Ostia
Where is Ostia?
Ostia may refer to: * Ostia Antica, a township and port of ancient Rome * Ostia(town), a modern township (also called Ostia Lido or Lido di Ostia) on the Tyrrhenian Sea coast, near Rome, Italy. Usually, when modern Roman people say Ostia they refer to the modern town, not the nearby archaeological site. It can also refer to either of two modern districts of Rome: * Ostia(modern district),roughly co-terminous with Ostia (town) * Ostia Antica(district) (originally known as Gregoriopolis)
Where is Italy is Ostia?
Ostia is just a few kilometers from Rome.
When did Quiriacus of Ostia die?
Quiriacus of Ostia died in 235.
