the air sacks
chloplast
respiratory system
The organ is gills.
organ system
in your lungs
Pulmonary system- contains tissues and organs specialized for taking in oxygen and removing carbon dioxide from our bodies and for exchanging oxygen and carbon dioxide.
the oxygen you breath in is passing in different kinds of organs but the gas exchange is occurring in the alveoli.
Oxygen and carbon dioxide change in the lungs.
Carbon.
The heart pumps and circulates blood, which transports oxygen and nutrients to all tissues in the body - and transports away wastes (such as carbon dioxide and other waste products) to the eliminatory organs.
It is carbon dioxide which is collected from different organs of the body by blood
The main organ of the circulatory system is the heart, and it pumps blood to the cells of organs and tissues, giving them oxegyn and removing carbon dioxide.