Answer:
They digest without the use of teeth.
Explanation:
The food trickles from the crop into the bird's stomach (proventriculus or gizzard) where digestive enzymes are added to the mix and physical grinding of the food occurs. The gizzard is why chickens do not need teeth.
Answer:
I think it is B) human genome project or C) harmful mutations
Answer: Male 3
You can see which ones match up.
Hope this helped! :))
I am sorry, I am not good in this area but, I found a site that could help you: http://www.chemicalelements.com/elements/ca.html
I know I am not supposed to post links but, I found help