A child's sex is determined upon fertilization, when the female provides the X chromosome and the male provides _____. either the X or Y chromosome. From the following choices, select the type of inheritance in which multiple gene pairs combine to produce a particular trait.
1. To be a firefighter, you usually need a high school diploma and a college program in fire protection technology or a related program. You must pass physical agility, strength, fitness, and vision requirements. Previous experience as a volunteer firefighter may also be an advantage. 2.
How old do you have to be to become a firefighter? Some departments require you to be at least 18. 14 is the youngest to become a member of a fire company but even than you are a junior firefighter. It is 18 to go on calls. I â¦only know this because is was one a 14.