Lungs are made up of masses of aveoli
Please mark this as the brainliest answer if you can
Answer:
cell wall
Explanation:
Animal cells do not have a cell wall
Deletion is when a base or a segment is <span>removed </span>(deleted).
<span>Insertion </span>is when a base or a segment is <span>added </span>(inserted).
Nondisjunction is a failure of chromosome pairs to separate. Junction is when two things are joint, disjunction is when they are separated, so nondisjunction is failure to separate after they are joint......
<span>Limestone is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of themineral calcite. ... Most of them are found in shallow water areas between 30 degrees north ... Chalk: A fine-grained, light-colored limestone formed from the calcium carbonate skeletal remains of tiny marineorganisms.</span>