Answer:
the water will move into the raisin because the raisin doesn't have a high water concentration and the water is looking for somewhere less dense it can go.
Explanation:
Answer:
Evolution is a process that results in changes in the genetic content of a population over time. ... Microevolutionary processes are changes in allele frequencies in a population over time. Three main mechanisms cause allele frequency change: natural selection, genetic drift, and gene flow.
Answer:
Explanation:
You can get 1/4 tortoise female; 1/4 black female; 1/4 yellow male; 1/4 black male.
IT IS NOT possible to obtain a tortoise-shell male primarily because to have tortoise shell one has to be heterozygous. In case of males, they are hemizyogous so they only get one chromosome with the gene because they have XY and we know this disease is linked on X chromosome because different combinations give us different colors.
I say they are hemizygous because For example, most of the genes of the X chromosome and Y chromosome in human males are hemizygous since males have only one X chromosome (and one Y chromosome) (unlike females that has two X chromosomes).
Protoplasm is the organic substance making up the cell of all living things
There are various ways that geologists use for identification of minerals. These methods or tests are very simple to perform and can quickly help in the accurate identification of minerals. We will discuss here only three of them.
1) Hardness:
It is the property of a mineral that resists its scratching. It has something to do with the chemical bonding between atoms of a mineral. The stronger that bonding is, the difficult it is for you to scratch the mineral. Although presence of impurities can effect the right diagnosis of the mineral but still hardiness is a very good criteria to identify a mineral. For example, lead has very low hardness due to which we can write through it on paper, however a steal nib would never let us write because it has good hardness and it cannot be scratched easily. Please see the attached image, it shows hardness values of different minerals that give unique identification to them.
2)Streak:
It is the test in which mineral is scraped with a porcelain piece. This streaking can help in the diagnosis of the mineral in powdered form. For example, when chromite is streaked it gives choclate brown streaks and it is the color very different from all other minerals and it can be quickly identified.
3) Physical properties:
There are some ways of identifying a mineral by just looking at them, however some experts are better at it then some one who has zero experience. This is because minerals have some characteristics like color, luster (that can be metallic or non metallic) and taste or smell. For example, sulfur has a specific smell and it is quickly identified with it. Chalcanthite has a specific taste and it can be quickly identified with it.
Hope it helps!
