Because the have hollow bones, feathers, wings, beaks, and they lay eggs
Answer:
ionic bond
Explanation:
When two ions transfer electrons or bond together they make an ionic bond.
Answer:
My best guess would be boil it!
A measure of the number of particles of a substance in a given volume would be concentration. <span>In chemistry, </span>concentration<span> is the abundance of a constituent divided by the total volume of a mixture. There are a number of ways expressing it such as molarity, molality, normality, ppm, percentage and the like.</span>
They attach to the chromosomes, line them up during metaphase, and pull them apart during anaphase
