Answer:
Les alvéoles pulmonaires sont situées au plus profond des poumons, aux extrémités des bronchioles, et sont la structure de base où se réalisent les échanges gazeux entre l'organisme et l'air extérieur.
Explanation:Es cuando la interacción nuclear que experimentan los protones y los neutrones son mayores que la fuerza de repulsión eléctrica
de los protones
Es estable cuando existe un equilibrio entre las fuerzas que actúan, o las fuerzas atractivas son mayores que las repulsivas
The type of joint that allows bones to move backward and forward in only one direction is the hinge joints. Ball and socket are the joints that allows movement in all directions. Gilding joints are type of joints that are the vertebral disks that allow twisting, turning, and sliding. Hinge joints are formed between two or more bones where the bones can only move along one axis to flex or extend. They include the ankle, elbow and knee joints.
The natural element _IODINE_ is important in the synthesis of thyroid hormone; lack of it will lead to a goiter.
Well, when chromosomes cross over during prophase 1 of meiosis, the homologous pair of chromosomes exchange segments of DNA which happen to be the genes. So the significance of crossing-over during prophase 1 is that it adds genetic variation to sexually reproducing organisms.
