B or d.... hope this helps:)
A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main protein filaments—actin and myosin—which are the active structures responsible for muscular contraction. The most popular model that describes muscular contraction is called the sliding filament theory.
Highly unlikely both parents have to be colorblind
Climat effects many things but what do you mean parent material
Answer:
B replication
Explanation:
the teacher demonstrated, so the students were told to CARRY OUT THE *same* experiment, AKA REPLICATION >:3
