Answer:
Physical.
Explanation:
These scientists group the found fossil with birds on the basis of physical structures because first the scientists relate the fossil to the feathers of the bird and later the scientists relate it to the bone structure to determine the resemblance between the birds and the fossil of an obscure group of small dinosaurs so we can conclude that the scientists observe the found fossil on the basis of physiological characteristics of that fossil.
Answer:
Observing is the fundamental science process skill. We observe objects and events using all our five senses, and this is how we learn about the world around us.
Brainliest?
