There are two types of cellular respiration, these are aerobic and anaerobic respiration. Anaerobic respiration can occur in the absence of oxygen, but for aerobic respiration to occur, oxygen must be present. The process of aerobic cellular respiration involves a series of oxidation and reduction reactions and the oxygen molecule serve as an electron donor and acceptor during this process. Thus the stages of cellular respiration can only occur if oxygen is present. <span />
<em>Answer:</em>
<em> A gas will fill any container, but if the container is not sealed, the gas will escape.</em>
<em>i counldnt find it so i did it my self</em>
<em>but it was liquid</em>
From tiny blood cells/vessels!
Hope this helps!
Answer:
The theory of evolution was proposed by Charles Darwin and was first formulated in his book, "Origin of Species" in 1859. It focuses on the changes in species and populations over time
