Can some one help me with this please. I will give you anything if you get this right.

  so, i only know number 6 which is human fertilization

6. when sperm and eggs combine its called a zygote.

7. The diploid number for humans is 46 chromosomes. The haploid number  is 23 or n=23.

8. Matching chromosomes are called homologous pairs.

9. During prophase 1 of meiosis these pairs form a tetrad process called crossing over or recombination.

10. When homologous chromosomes exchange genes it's called synapsis.

11. 2 daughter cells are created at the end of meiosis 1 and 4 are created at the end of meiosis 11.  

12. During the meiosis chromosomes will split into daughter cells randomly making each gamete unique this is called Cytokinesis.

13. The process by which sperm is made is called Sertoli cells.

14. The process by which eggs are made is called oogenesis.

15. During the creation of an oocyte, 3 additional haploids are created that will not be fertilized these cells are called Polar bodies.

I really hope this helps.

Step-by-step explanation:

answer: a

step-by-step explanation: the answer is a due to the rule of symmetry; that a line of symmetry must divide a figure into 2 pieces that are the exact same, only reflected over a line of symmetry. b and c do not have lines of symmetry and would not divide the figure evenly, thus making the answer a.