According to my calculations, the correct answer is true
Answer:
Charles Darwin was a naturalist from the 1800's. He developed the theory of natural selection which became the foundation of modern evolutionary studies. Natural selection is the survival and reproduction of individuals and how they adapt.
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:
micronucleus and macronucleus
