As both fill with liquid they expand. They are also both rounded shapes
Marsupials are pest put some are not but some of them are mammals and some of them are not. I guessed it should be either way .
Produce energy usable by the cells of their respective organisms.
Answer:
Explanation:
They can contain DNA or RNA as their genetic material
Breathing is an automatic and rhythmic act produced by networks of neurons in the hindbrain (the pons and medulla). The neural networks direct muscles that form the walls of the thorax and abdomen and produce pressure gradients that move air into and out of the lungs.
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