Answer the following question given this paragraph: Two identical diploid cells result from spermatogonia mitosis. One of these cells remains a spermatogonium, and the other becomes a primary spermatocyte, the next stage in the process of spermatogenesis. As in mitosis, DNA is replicated in a primary spermatocyte, and the cell undergoes cell division to produce two cells with identical chromosomes. Each of these is a secondary spermatocyte. Now a second round of cell division occurs in both of the secondary spermatocytes, separating the chromosome pairs. This second meiotic division results in a total of four cells with only half of the number of chromosomes. Each of these new cells is a spermatid. Although haploid, early spermatids look very similar to cells in the earlier stages of spermatogenesis, with a round shape, central nucleus, and large amount of cytoplasm. A process called spermiogenesis transforms these early spermatids, reducing the cytoplasm, and beginning the formation of the parts of a true sperm. The fifth stage of germ cell formationspermatozoa, or formed spermis the end result of this process, which occurs in the portion of the tubule nearest the lumen. Eventually, the sperm are released into the lumen and are moved along a series of ducts in the testis toward a structure called the epididymis for the next step of sperm maturation. Q: During mitosis what is replicated in the primary spermatocyte? Choices: - mitochondira - oocyte - rna - dna A:
dna
(Question)
Answer the following question given this paragraph: Cellulose is another complex carbohydrate that is a polymer of glucose. However, glucose molecules are bonded together differently in cellulose than they are in starches. Cellulose molecules bundle together to form long, tough fibers, as you can see in the Figure below . Have you ever eaten raw celery? If you have, then you probably noticed that the stalks contain long, stringy fibers. The fibers are mostly cellulose. Cellulose is the most abundant biochemical compound. It makes up the cell walls of plants and gives support to stems and tree trunks. Cellulose also provides needed fiber in the human diet. We can't digest cellulose, but it helps keep food wastes moving through the digestive tract. Q: What human bodily function does cellulose help with? Choices: - stops food wastes - sleep - reproduction - moves food wastes A:
(Answer)
moves food wastes
Ques: Answer the following question given this paragraph: Sexual reproduction is more complicated. It involves two parents. Special cells called gametes are produced by the parents. A gamete produced by a female parent is generally called an egg . A gamete produced by a male parent is usually called a sperm . An offspring forms when two gametes unite. The union of the two gametes is called fertilization . You can see a human sperm and egg uniting in Figure below . The initial cell that forms when two gametes unite is called a zygote . Q: In sexual reproduction, what is the name of the gamete cell the male must contribute? Choices: - plasma - spore - ova - sperm A:
Ans: sperm
(Q).
Answer the following question given this paragraph: In harmonic motion there is always a restorative force , which acts in the opposite direction of the velocity. The restorative force changes during oscillation and depends on the position of the object. In a pendulum it is the component of gravity along the path of motion. The force on the oscillating object is directly opposite that of the direction of velocity. Q: A solute generally has what effect on the boiling point of a solvent? Choices: - randomizes - lowers - none - raises A:
(A).
raises
Ques:Answer the following question given this paragraph: Q: Is sleep an active or inactive state in the brain? Choices: - intense - different - inactive - active A:

Ans:active
Question: Answer the following question given this paragraph: Neutrons, like protons, reside in the nucleus of an atom. They have a mass of 1 and no charge. The positive (protons) and negative (electrons) charges balance each other in a neutral atom, which has a net zero charge. Because protons and neutrons each have a mass of 1, the mass of an atom is equal to the number of protons and neutrons of that atom. The number of electrons does not factor into the overall mass, because their mass is so small. As stated earlier, each element has its own unique properties. Each contains a different number of protons and neutrons, giving it its own atomic number and mass number. The atomic number of an element is equal to the number of protons that element contains. The mass number, or atomic mass, is the number of protons plus the number of neutrons of that element. Therefore, it is possible to determine the number of neutrons by subtracting the atomic number from the mass number. Q: Neutrons and protons reside in which part of the atom? Choices: - molecules - nucleolus - vacuoles - nucleus A:
Answer:
nucleus