Organs.
if you're having trouble remembering them they are
cell
tissue
organ
organ systems
organism
The answer B. Chromosomes
B. sugarcane. Not sure if this is correct or not, but my research shows it is. Hope I helped!
A because it’s dna fragments
Answer:
I think that birds have different bill lengths because of their habitats and their diet. Also natural selection and evolution has also played a factor due to the fact that birds have not always looked the way that they do now, for example the Archaeopteryx a bird that lived around the time of the dinosaurs had a shorter and more powerful bill to grind insects and small mammals
Explanation:
