The semi fluid matrix that surrounds organelles
in a cell is called the cytoplasm.<span>
<span>Organelles are the specialized structure with in a cell. Some
biologist says that organelle is a cell compartment. Mitochondria and
plastids are two broad classes of organelles. Cytoplasm is a thick substance
which fills each cell.</span></span>
B. 245 million
from the end of Carboniferous Period to the beginning of the Triassic period
A Solid has a fixed mass.
Answer:-DNA.But I am not sure
