Rapid burial and the possession of hard parts.
The correct answer is that the H zone becomes narrower.
The H-band refers to the region of the thick filaments, which is not overlaid by the actin (thin filaments). Within the H-zone is a thin M-line, which is formed of cross-connecting components of the cytoskeleton.
At the time of muscle contraction, the A-bands do not vary in their length, whereas the H-zone and the I-bands shorten. This makes the Z-lines come near to each other.
<span>Connecting heredity to chromosomes
</span><span>
Describing chromosomes
</span><span>Confirming the chromosome theory of inheritance
</span>
<span>Morgan's lab connects eye color with inheritance of sex chromosomes</span>
To much gas has build up in them? I guess
