Unlike protozoa, sponges are multicellular. However, unlike higher metazoans, the cells that make up the sponge are not organized into tissues. Therefore, the sponge lacks true tissue and organs. Moreover, they have no body symmetry. However, the sponge has special cells that perform certain functions. Sponges are multicellular, heterotrophic, lack cell walls, and are similar to other animals in that they produce sperm cells. Unlike other animals, they lack real tissues and organs. Some of them are radially symmetric, but most are asymmetric. What kind of sponge is SpongeBob SquarePants? Freshwater sponges are delicate sponges that grow on the sturdy submerged objects of clean streams, lakes and rivers. Examples include Spongilla lacustris and Demosponge.
Do sponges have tissues or organs?
Therefore, the sponge has no true tissue or organs. Moreover, they have no body symmetry. However, the sponge has special cells that perform certain functions. Click to see the complete answer. So does the sponge have tissue?
How do sponges resemble and differ from other animals?
Sponges are multicellular, heterotrophic, lack cell walls, and are similar to other animals in that they produce sperm cells. Unlike other animals, they lack true tissues and organs.
Which of the following is an example of a sponge?
Includes yellow tube sponge, Aplysina fistularis, purple vase sponge, Niphates digitalis, red coated sponge, Spirastrella coccinea [nl], and gray rope sponge, Callyspongiasp. Sponges are multicellular, heterotrophic, lack cell walls, and are similar to other animals in that they produce sperm cells.
What is the function of the sponge's immune system?
"Immune" system. When invaded, they produce chemicals that stop the movement of other cells in the affected area, preventing intruders from using the sponge's internal transport system. If the invasion continues, the gray cells concentrate in that area and release toxins that kill all cells in that area.
How many true tissues does the sponge have?
Sponges can grow from a few millimeters up to 2 meters in length, depending on the species to which they belong. Why is the sponge considered one of the simplest invertebrates? The sponge has no true tissue. Instead of tissue, sponges have special cells that perform functions such as digestion and reproduction. 2019
Do sponges have tissues or organs?
The sponge has no tissues or organs, but has some types of special cells. Sponges are filter feeders. They pump water from the pores into the body.
What about sponges?
Sponges are multicellular, heterotrophic, lack cell walls, and are similar to other animals in that they produce sperm cells. Unlike other animals, they lack real tissues and organs. Some of them are radially symmetric, but most are asymmetric.
Which animal does not contain true tissue?
Sponges are the simplest of all multicellular animals. They are the only animals that do not show obvious symmetry in the tissues of their bodies. They have aggregates of different cell types, but do not have true tissue.
Below you will find two helpful answers on a similar topic. 👇
What are the 2 ways sponges feed?What are the three layers of a sponge?
