I am very sorry, but all I can provide is that Dawn must have used the balance incorrectly or her other classmates didn't account for certain factors that Dawn did. I would really love to help, but I would need more information.
Answer:
This phenomenon is called Niche Differentiation, it happens when several species live in the same area but different parts. Hope that helps! :)
Answer: The arteries (the aorta)
Answer:
1. Life, exist 2. pre-existing cells.
Explanation:
Answer:
D. they are usually dominant or recessive.
Explanation:
alleles are pairs of genes found on a particular spot a chromosome. If one is dominant over the other it give rise to a particular trait.