Does an acoelomate have an endoderm?
An acoelomate is the simplest form of animals which have 3 true tissues. These tissue are the endoderm, mesoderm, and ectoderm, in that order from inside to out. The ectoderm is the skin, while endoderm forms the digestive tract.
Do Acoelomates have a mesoderm?
Acoelomates have a triploblastic body plan, meaning that their tissues and organs develop from three primary embryonic cell (germ cell) layers. These tissue layers are the endoderm (endo-, -derm) or innermost layer, mesoderm (meso-, -derm) or middle layer, and the ectoderm (ecto-, -derm) or outer layer.
Which phylum is acoelomate?
Platyhelminthes
The three phyla considered in this chapter are the Platyhelminthes or flatworms; the Nemertea or ribbon worms; and the Gnathostomulida or jaw worms.
Which of the following is acoelomate?
The three phyla considered in this chapter are the Platyhelminthes or flatworms; the Nemertea or ribbon worms; and the Gnathostomulida or jaw worms.
Is a Planaria acoelomate Pseudocoelomate or coelomate?
(i)Acoelomate: Nereis, Earthworm, Sea anemone, Planaria, Liver fluke. (ii) Pseudocoelomate: Spongilla, Scorpion, Birds, Fishes, Horse.
What does the mesoderm layer become?
The mesoderm gives rise to the skeletal muscles, smooth muscle, blood vessels, bone, cartilage, joints, connective tissue, endocrine glands, kidney cortex, heart muscle, urogenital organ, uterus, fallopian tube, testicles and blood cells from the spinal cord and lymphatic tissue (see Fig.
Which phylum is Acoelomate?
What is Coelomate and Acoelomate?
The key difference between coelomate and acoelomate is that the coelomate is an organism that possesses a true fluid-filled body cavity completely lined by the mesoderm-derived epithelium while the acoelomate is an organism that lacks a body cavity between the digestive tract and outer body wall.