<span>Endocrine glands are ductless or tubeless organs or groups of cells that secrete hormones directly into the bloodstream.</span> <span>The endocrine glands are part of the endocrine system and include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands. The endocrine system maintains homeostasis, controls the growth and development, controls metabolism (body energy levels), reproduction, response to stimuli (stress and/or injury).</span>
Force is a vector quantity.
A vector quantity has magnitude and direction which makes it different from the scalar form of quantity. Scalar has only magnitude or size or degree of amount.
For example, acceleration. The velocity, displacement and pressure.
Suministra oxígeno a la sangre y elimina el dióxido de carbono de la sangre
A fir person can recover faster than an unfit person because his body is better suited against injuries.
Its according to their organs.. where the my come from.. where they inhabit..what the eat.. how they look like..
take for example: reptiles.. they are classified as reptiles cause.. they are the only types of animals who have hard scaled skin not like fish..