Answer:
So they are lighter and move quicker.
Explanation:
With the small wings and bodies birds have it would be hard for them to escape predators and lift their own weights if their bones were dense like humans' bones. The hollow part of the birds' bone is connected to their lungs so they have enough oxygen to fly easily. Hope this can help you! :)
Answer: option E
Bill of materials
Explanation:
Bill of materials is the listing of all the raw materials, components parts and sets of pieces that can work together to produce one or more units of finished products by a company.
This bill of material is used majorly by manufacturing company to list their raw materials needed for production.
i believe its carbon dating.
i might be wrong.
hope this helps!
