Relaciona con cada organelo de la célula un órgano o sistema de seres pluricelulares que tengan la misma función: reticulo endoplasmatico-

membrana plasmatica-

nucleo-

vacuolas-

well we can't tell you because we cant see the time give a screen shot or something.

the supermassive black hole is in the middle of the galaxy.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.