How Many Significant Figures Are in the Number 1000

question 112

Multiple Choice

How many significant figures are in the number 1000.0?

• A) 1
• B) 2
• C) 3
• D) 4
• E) 5

---

Definitions:

IgG

A type of antibody representing a large portion of the immune response and playing a crucial role in pathogen detection and neutralization.

IgM

An antibody that is part of the immune response, being the first type of antibody to be produced in response to an antigen.

IgA

Immunoglobulin A, a type of antibody that plays a critical role in the immune function of mucous membranes.

IgE

Immunoglobulin E, a class of antibodies produced by the immune system that plays a key role in allergic reactions.