Periods of the Paleozoic Era. There are six periods in the Paleozoic Era: Cambrian, Ordovician, Silurian, Devonian, Carboniferous (alternatively subdivided into the Mississippian Period and the Pennsylvanian Period), and the Permian.
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:
Answer:
because it is a moon of Saturn
because it is covered in ice
because it has a deep ocean beneath ice
because there is a chance it hosts life
because it has an atmosphere similar to Earth
Explanation:
Mitochondria are the energy factories of the cells. The energy currency for the work that animals must do is the energy-rich molecule adenosine triphosphate (ATP). The ATP is produced in the mitochondria using energy stored in food. ... This is a very efficient process for using food energy to make ATP.
Answer:
the answer is this
Explanation:
In these oceans, extremely small dead organic matter - classified as plankton - falls to the floor of the ocean It is this sediment on the ocean floor that then forms oil over many years. The energy in oil initially comes from the Sun, and is energy from sunlight that is trapped in chemical form by dead plankton