Kingdoms are classified into three Domains and into one of the six kingdoms of life.
<span>During meiosis I, homologous chromosome pairs are separated when the centromeres split apart.
This answer would be false.</span>
Amphibia is the class of vertebrates which is considered to be the first to develop lungs. This allowed amphibians to live successfully on land as terrestrial organisms. Ichthyostega was the first primitive amphibians with nostrils and lungs. Amphibians adopted themselves to live on land with developed lungs.
the answer is mitochondria
B, both chemical and biological factors are involved
