One is to involve exercising curiosity in order to ask questions and seek answers about the universe.
Explains the heart and breathing rate
Yes they have a similar mode of nutrition also you’re welcomeeee
Proteins function as builders and give energy repair and reproduce muscle etc ...
The answer is mutation
of genes. The mutations were beneficial and gave the individuals of the population
advantage and hence increased their survival. The classic features of birds
evolved one by one and gave birds advantage over their dinosaurs counterparts, especially the feature of small size.
