Bile from the gallbladder is escaping through cardiac sphincter into esophagus
a long, seismically active submarine ridge system situated in the middle of an ocean basin and marking the site of the upwelling of magma associated with seafloor spreading. An example is the Mid-Atlantic Ridge.
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This is the process called cellular respiration,it requires sunlight, glucose and A)Oxygen.
Answer:
Planaria.
Explanation:
The kingdom eukarys is divided into the different phyla including almost all the animals. The organism are classified on the basis of their level organisation, cavity and on the basis of coelom.
The cephalization is initial process for the deposition of nervous tissue in brain. The cephalization is absent in porifera and coelenterate. The planaria also known as flat worms shows the process of cephalization and this process becomes more complex in higher animals.
Thus, the correct answer is option (4).