Streak test is used to compare the properties of different minerals.
Explanation:
Streak test is perform on rocks to check the properties of a mineral or rocks. If you have a piece of white floor tile, You can use it for the test. In this test we rub mineral on a piece of white tile Turn your tile so that the dull side faces up. Take your rocks one at a time and rub them back and forth over the surface of the tile and observe the color of the powder left behind which will tell about the type of mineral.
Explanation:In a heterozygote, the allele which masks the other is referred to as dominant, while the allele that is masked is referred to as recessive.
I think they could feel around in the water to see where they are going and they probably just know their way like for food it might be hard but I am sure they eventually find it.
