A "micrometer" is the best unit of measurement for measuring the size of an atom.
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:
Answer:
The heads (the phospho part) are polar while the tails (the lipid part) are non-polar.Its like a front and back type of location with those.
