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The missing words are circle - shaped chromosome.
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D most likely. That makes the most sense m.
I believe this would be stomata
Hope this helps!
Differences
Bony Fish
They are both fresh water as well as marine.
Endoskeleton is made up of bone.
They have 4 pairs of gills.
Cloacal aperture is absent.
mouth is normally terminal
Cartilaginous Fish
They are marine.
Endoskeleton is made up of cartilage.
They have 5-7 pairs of gills.
Cloacal aperture is present.
mouth is at the ventural surface
similarties
Bony fish and cartilaginous fish represent two classes of aquatic chordates. Both bony fish and cartilaginous fish belong to the superclass Pisces. Both bony fish and cartilaginous fish have an endoskeleton.are their centralized nervous systems, their sizes are similar, they both belong to the phylum chordata, they are both a family of the fish, and both have a lateral line organ that enables the fish to detect movement and vibration in the water surrounding them.
Explanation:
In 1775 Jenner began to study the relationship between cowpox (a comparatively harmless disease) and the more dangerous and disfiguring smallpox. ... He hypothesized that exposure to cowpox rendered the body immune from smallpox. After nearly twenty years of experiments, he developed the first vaccine.
