Answer:To test whether iodine or starch have crossed the synthetic membrane, you will look for a change in color. A solution of iodine is tan and a solution of starch is clear or milky white; when iodine and starch are together in the same solution, the solution is purple, dark blue or black.
Explanation:
Answer:
Stream volume and speed directly affects the size, shape, and flow of streams and rivers.
Explanation:
- The greater volume results in larger channels and these larger channels will make the flow of stream faster.
- The flow volume of different streams are related to precipitation and run-off.
- The earth materials also heavily effect the flow by changing the properties of the water like increase in the mass, hardness, shape, etc.
- Erosion and deposition is common in the curving type of stream.
I believe your answer would be:
A. Fossils.
Explanation:
Because they are the preserved remains or traces of animals, plants, and other organisms from the past. They're also important evidence for evolution because they show that life on earth was once different from life found on earth today.
Hope I helped, good luck! =)
