During the formation of sex cells, the number of chromosomes after meiosis i is  the answer has to be a number allison and greta are discussing mitosis and meiosis. allison says that body cells such as muscle cells would use mitosis, and greta says that body cells would use meiosis. who is correct? a. allison, because body cells need to be haploid, genetically different copies, which are produced through mitosis b. allison, because body cells need to be diploid, identical copies, which are produced through mitosis c. greta, because body cells need to be haploid, identical copies, which are produced through meiosis d. greta, because body cells need to be diploid, genetically different copies, which are produced through meiosis

During meiosis in the formation of sex cells, the number of chromosomes in the daughter cells is HALVED in comparison to the parent cell. Sex cells have half the number of chromosomes as normal cells to allow them to join together during fertilization to form a single cell with a full compliment of chromosomes originating from two different parent cells (i.e. the mother and the father in animals).

For the case of Allison and Greta, the correct answer is B. Body cells (or non sex cells) need to be diploid (contain a full compliment of chromosomes from mother and father) and are identical copies produced by Mitosis. 

A is incorrect because body cells are diploid, not haploid (half no. chromosomes).

C and D are incorrect because body cells (non sex cells) are all produced by mitosis and not meiosis.

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.