Answer:
They use a hard shell, but not hard enough though because we humans can get through them hehehe
On earth an object at rest has gravity acting on it
This is a point mutation.
Answer:
If you decided that the continuous spectrum of earlobe shape was a more accurate way to describe the variation, you aren’t alone. Family and genetic studies show that earlobe attachment is actually not a simple trait, but rather a complex trait, affected by multiple genes and environmental factors.
