gyre
The rising and sinking motion is called convection current.
The extraembryonic membrane that forms a fluid-filled sac is the amnion. It helps protect and cushion the developing embryo by surrounding it with amniotic fluid.
Choroid Plexus
pituitary system
the answer is mucus
The part of the diencephalon that forms cerebrospinal fluid is called the choroid plexus. It is responsible for producing the majority of the cerebrospinal fluid found within the central nervous system.
epideynal cells
Alternating Current (AC) and Direct Current (DC)
a surface current forms
choroid plexus
convection currents
The two forms of electricity are Alternating Current (AC) and Direct Current (DC).