You should only test one variable/factor in a science experiment.
Replication is performed prior to cell division
Answer:
It can affect ecosystems by, Air pollutants such as sulfur may lead to excess amounts of acid in lakes, and streams, and can damage trees and forest soils. Nitrogen in the atmosphere can harm fish, and other aquatic life when deposited of surface waters.
Explanation:
The correct answer is transitional.
Gerobatrachus refers to an extinct genus of amphibamid temnospondyl, which thrived in the initial Permian, that is, about 290 mya, in the region, which is now known as Baylor County, Texas. The transitional form of fossils are those that demonstrate the intermediate form between the two distinct living species, it could be in a form of an ancestor and its descendants. It is considered that the frogs and salamanders have evolved from a common ancestor of primitive amphibian tetrapod subclass known as Temnospondyli.
