The Hershey–Chase experiment was based on a bacteriophage T2 (a virus), to that DNA is the genetic material. Bacteriophage T2 attacks bacterium and makes its copies. Based on the experiment, Hershey and Chase deduced that it is the DNA of virus enters bacteria to make virus copies. To trace viral DNA, Hershey and Chase label DNA with ³²P (radioisotope of phosphorus) because phosphorus is not present in most of the proteins.
Answer:
To place the enzyme in different temperature.
Explanation:
In order to determine the effect of temperature on the activity of the enzyme amylase, we have to place the enzyme amylase in different environment having different temperatures. That environment which increases the activity of enzyme is considered suitable temperature for the enzyme and the temperature at which the activity of enzyme amylase is minimum is considered as bad temperature for the enzyme. For determining the temperature, we have to place the enzyme in different temperature.
Most canyons were formed by a process of long-time erosion from a plateau or table-land level. The cliffs form because harder rock strata that are resistant to erosion and weathering remain exposed on the valley walls
Answer:
1)the phone can reach long distances in an instant. the post can diliver packeges. it takes longer than phones
2)if the brain is gone your dead if your leg is gone you cant stand by yourself.
(brainly?)
The streams and rivers in the drainage basins were the prairies are converted into farm land are mostly affected by the agriculture and its needs, as well as its consequences.
The agriculture demands water for irrigation, and most of this water comes from the streams and rivers, so that contributes to lowering of the water levels of the streams and rivers.
The agriculture also causes damage to the streams and rivers by polluting them. Namely, the pesticides, herbicides, and fungicides that are used for protection of the plants, partially end up in the low groundwater's, and in general, these waters are connected to the streams and rivers, so the pollutants end up in them, and that affects the biodiversity in them very badly.