They increase in number and they are more specialized
Most of the marine animals have a stream lined body, which means, they have a sharp and pointed at the front. The pointed front of the organism allow to cut the resistance of the water. In case, the body is not pointed at the front and it is blunt, the water current and flow would resist the movement of the organism further. So, for the locomotion purpose, it is important to have a streamlined body. Further smooth and hair less body also decrease the resistance during the movement in the water.
Liver
In pediatric patients, the liver and spleen are very large in
proportion to the size of the abdominal cavity and are more easily injured. The
soft, flexible ribs of infants and young children do not protect these two
organs very well and may allow injury to underlying organs, even without fracturing
the ribs.
<span>
Stents are commonly used for sable chest pain.</span>
Three organism in the food web that are carnivores are hawk, snake, and frog
Hope this Helps