Kidneys, Bone Marrow, and it Produces red blood cells.
The process of
prenatal development occurs in three main stages and they are listed in order;
<span>1. </span>Germinal Stage - begins at conception when the
sperm and egg cell joined in one of the two fallopian tubes.
<span>2. </span>Embryonic Stage - begins at the beginning of
the third week after conception. This stage plays an important role in the
development of the brain.
<span>3. </span>Fetal Stage - begins during the ninth week
and lasts until birth.
Answer:
The trachea branches into two tubes called bronchi (one to each lung). The bronchi split into smaller and smaller tubes called bronchioles, which then end in microscopic alveoli (air sacs). ... The layer of moisture in the alveoli allows gases to dissolve so that they can diffuse quickly.
CR. That is a phrase to use it.
