How Many Pairs of Ribs Do Humans Have

question 22

Multiple Choice

How many pairs of ribs do humans have?

• A) 6
• B) 8
• C) 10
• D) 12
• E) 14

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Definitions:

Full Term

Refers to a pregnancy that reaches completion, typically around 39 to 40 weeks, leading to the birth of a baby.

Period Of The Zygote

Approximately a 2-week period from the time of fertilization of a human ovum by a sperm to the time of implantation in the uterine wall.

Period Of The Fetus

Lasting from the ninth week of gestation until birth, the time of rapid growth and further differentiation when the reproductive system forms, gains in body weight occur, and the brain and nervous system continue to develop.

Chromosomes

Structures made of DNA and proteins that contain the genetic information of an organism.