Answer:
Actin - Thin Filaments
Myosin - Thick Filaments
A band is the part of the sarcomere than contains both actin and myosin filaments. Sarcomere are contractile units from which the skeletal muscle cells are organized.
<span>Unlike identical twins, fraternal twins result from two eggs fertilized by different sperms. This is why fraternal twins are also named dizygotic twins, as there were two zygots at one point. These twins are not identical, although they are born at the same time. They may resemble each other, like any siblings do, but they do not look the same, even though they are technically twins. </span>
B. is correct. Let's look at the others...
A-- we know salt deposits are not alive.
C-- True, salt deposits are not alive, but they do not respond to stimuli... this is a characteristic of living things.
D-- Salt deposits are not alive and do not maintain homeostasis.
Pass these traits on to their offspring because it would be a dominant trait.
