Answer:
In humans, genetic variations are caused because humans reproduce by a sexual life cycle which is termed as meiosis. In such a life cycle, the offspring receives half the chromosomes from the mother and half from the father. Crossing over and random assortment of chromosomes are two phenomenons which occur during meiosis. Due to these two phenomenons, genetic variations are caused.
During crossing over, the exchange of DNA segments between the homologous chromosomes takes place which brings about the genetic variations.
Answer:
Cells from the cheek are a type of epithelial cell, similar to skin. ... They can be seen faintly even at 40x (scanning power), but the most dramatic images are at 400x where the nucleus is clearly visible as a dark spot in the center of the cell.
Explanation:
Hello There!
The Net Force Is 4
First, let's remember that you find the "Net Force" of an object by the direction its going. In this case, they are both pointing in different directions.
Next, we find the "Net Force" by subtracting them and the one with the biggest force, you go in that direction.
Finally, once we subtracted 5 from 9 we get a "Net Force" of 4
Structuralism used the practice of introspection to study consciousness.
Hope this helps.
