Sponges (phylum: Porifera) are animals that possess feeding cells called collar cells. These cells have a central flagellum surr
ounded by a collar of microvilli. The collar filters organic matter out of the water column. Which protist shares a more recent common ancestor with the poriferans
Protists are organisms that have both plant and animal like characteristics. Some protists develop more plant like characteristics and others more animal like characteristics. Choanoflagellates are the protists which looks like animals called sponges. These protists are single celled organisms. Their function is similar to collar cells of the sponges that is they produce current in water that draws water and food particles via the body of sponges and they filter the food particles through their microvilli.
When you heat a gas, both its vapor pressure and the volume it occupies increase. The individual gas particles become more energetic and the temperature of the gas increases. At high temperatures, the gas turns into a plasma.
All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Cell division is tightly regulated because the occasional failure of regulation can have life-threatening consequences.
