Question

Carbon has four electrons in its outer shell. Why does this make it important to life?(1 point)
Responses

The outermost shell never fills making it unstable and unable to bond to other carbon molecules.
The outermost shell never fills making it unstable and unable to bond to other carbon molecules.

The outermost shell can form up to four covalent bonds and this allows it to form biomolecules.
The outermost shell can form up to four covalent bonds and this allows it to form biomolecules.

The outermost shell is full, making it a stable element that can bond to water.
The outermost shell is full, making it a stable element that can bond to water.

The outermost shell can only bond with hydrogen and other carbon atoms.

Answer 1

Reliability refers to(1 point)
Responses

elegance
elegance

professionalism
professionalism

consistency
consistency

relevancy

Answer 2

The correct response is:

**The outermost shell can form up to four covalent bonds and this allows it to form biomolecules.**

This characteristic enables carbon to create a wide variety of complex molecules that are essential for life, including carbohydrates, proteins, lipids, and nucleic acids.

Answer 3

The correct response is:

**consistency**

Reliability refers to the consistency of a measure or outcome; it indicates that results can be reproduced under the same conditions.