one of it is the crust and core
lands and lands
Chromatids
Water Earth (Dirt) and Rocks
the two parts of the cardiovascular system are heart and blood vessel
A centromere and a pair of sister chromatids
Pronoun and speech
nucleus and nucleolus
Microfilaments and microtubules
The old and new testaments are the two parts that make up the bible.
The door and two hinges.
lands and lands
The house and the senate
Sugar and phosphate are the parts that make up the DNA backbone.
Congress consists of two parts: the House of Representatives and the Senate.
house of representatives and the senate
Protons and Neutrons
Chromatids