Answer:
Yes, the order of classification has remained domain, kingdom, phylum, class, order family, genus, species for quite a long time now.
The independent variable is weather the plant grows tall or not
That answer would be A. nucleus
Embryo sac , and other three degenerate !
The stomach has three
layers of smooth muscle fibers run in three different angles. These layers are critical in giving the stomach the capability to mix, well, ingested
food as it is mixed with enzymes and hydrochloric acid. This is important
because smoothe muscles can only contract in one direction hence the layers
give multidirectional movements of the stomach hence goof mixing and better digestion.