Select the correct answer from each drop-down menu. Jessa is a crime scene investigator. She examines a bullet found at the scene and a fingerprint left in a blood smear. What type of marks might link the bullet to a specific weapon? Which type of fingerprints has she found? Jessa examines a bullet at a crime scene. The markings, called might link the bullet to a specific weapon. She also finds some fingerprints smeared in the blood of the victim. These are fingerprints.

The mark called Rifling might link the bullet to a specific weapon.

These are Patent fingerprints.

Explanation:

Modern-day handguns are produced of a particular blueprint that determines their specifications. One major characteristics trait of this specification is known as Rifling.

Rifling is an act or process of making the grooves in a rifled cannon or gun barrel. The system of grooves in a rifled gun barrel in which one side of the groove is made deeper than the other side to facilitate loading with shots having projections is enough to determine what brand/model of specific weapon is being used.

The only type of fingerprint that can be collected through such a crime scene in a blood smear is Patent fingerprints. This type of fingerprint is collected by using a photographic technique that uses high resolutions & a forensic measuring scale.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.