Two Bullets Fired from the Same Gun May Not Have

question 21

Multiple Choice

Two bullets fired from the same gun may not have similar striations because of:

• A)rust in the barrel of the gun.
• B)alternations in the barrel of the gun.
• C)a cheap gun that has fired a large number of rounds, resulting in wear that changes the striations.
• D)all of these can cause different striations

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Definitions:

Ovaries

Female reproductive organs located in the pelvis, responsible for producing eggs (ova) and hormones such as estrogen and progesterone.

Wombs

The organ in female mammals, including humans, where offspring are conceived and in which they gestate before birth; also known as the uterus.

In Vitro Fertilization

A medical procedure in which an egg is fertilized by sperm outside the body, in a laboratory setting.

Petri Dish

A shallow cylindrical glass or plastic lidded dish that biologists use to culture cells or small organisms.