I think the answer you are looking for is that the stomach is the fourth level of organization.
The aerodynamic shape and lightness of the blue shark body allow it
to move “elegantly” across the oceans. It exhibits countershading like
many other sharks. The upper part is an indigo blue tone while the
ventral and the sides are white.
It has a long caudal heterocercal fin. The second dorsal fin measures
almost half the size of the first and its pectoral fins are unusually
long compared to other sharks. Its eyes are large, its teeth are
triangular, and it has a conical snout.
It reaches a length ranging from 3.8 to 4 meters and weighs about 240
kilograms. This species presents slight sexual dimorphism since the
female tends to measure little more than 1 meter in comparison with the
male.
3rd and 4th awnsers are correct
2. The endosymbiotic theory suggests that a eukaryotic cell is the result of one prokaryotic cell eating another.
<span>"I need to stay out of sun."
Fluphenazine is an anti-psychotic drug that can cause photosensitive and sunburn. clients taking this drug don't need to increase fluid intake, avoid cheese or eggs, or plan rest periods.</span>