Cell specialization is important because
-it is required for cells to perform as part of a living thing
-different cells need to do different things
Different organic molecules vary because they possess different functional groups and arrangement
BRAINLIEST PLS!
The continental crust is the layer of granitic, sedimentary and metamorphic rocks which form the continentsand the areas of shallow seabed close to their shores, known as continentalshelves. It is less dense than the material of the Earth's mantle and thus "floats" on top of it.
Continental crust is also less dense than oceanic crust, though it is considerably thicker; mostly 35 to 40 km versus the average oceanic thickness of around 7-10 km. About 40% of the Earth's surface is now underlain by continental crust.
The secret of an endocrine gland that is transmitter by the blood to the tissue travel through the body .