A animal has to have oxygen to live, some animals have evolved to not having oxygen,https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjxv4f49ePL...a web site telling about the animals that have evolved.
Answer:
C it has pairs of matching chromosomes
Answer:
The endoplasmic reticulum (ER) is the main site for lipid synthesis.
