Describe the benefits to using tissue cultures to
study medications used for treating cancer cells.

oxidation

explanation:

answer

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.

the dark variety, as they are not visible on the dark tree barks

explanation:

the fossil record provides evidence of a common ancestor to many species.