The double bond between two oxygen atoms (a molecule of oxygen air) has two characteristics. What are they?
O A. An ionic bond is formed.
O B. A metallic bond is formed.
O C. Four valence electrons are shared.
O D. Valence electrons are shared between oxygen atoms.

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.

How many copies of genes do gametes have?