What characteristics do only primates, rodents, and
rabbits have?

Answer:

Primates, rodents, and rabbits all are mammals which come under the subclass Eutheria of class Mammalia.

Explanation:

Class Mammalia is divided into three subclasses those are Eutheria, Metatheria and Prototheria. Eutheria consists of animals that give birth to young ones for example all the primates, rodents and mammals like rabbits. Metatheria consists of the animals that give birth to immature babies which will live in the pouches of their parents for example Kangaroo. Prototheria includes those mammals which lay eggs for example Platypus.

its the cell wall and the they are unique to plant

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.