The 4 inner planets are terrestrial planets and the
Answer:
A barometer
Explanation:
It is commonly used to measure atmospheric pressure
Answer:
the central nervous system
Explanation:
The nervous system is made up of the central nervous system and the peripheral nervous system: The brain and the spinal cord are the central nervous system.
All of the above are needed. Nucleotides are the basic building blocks of new DNA, ATP energy is needed because replication is an active process, and enzymes catalyze the reactions needed to carry it out (e.g. helicase to separate the strands to be replicated, DNA polymerase to build the new strands, and ligase to "glue" the fragments together).
