Concordance = presence of the same trait.
Identical twins have a higher rate than fraternal because most of their DNA is identical, it’s identical because the zygote split into two so the babies shared an amniotic sack. (Zygote is fertilized egg) so the baby got duplicated meaning only one egg and sperm created two babies. Fraternal twins happen when two eggs are fertilized and grow in separate amniotic sacks. So two different babies, two different eggs and sperm.
A) A flap in the heart located between each atrium and ventricle.
Hope it helps! :)
The amount of atomic mass between them
Along with peanuts<span> and shellfish, tree nuts are one of the </span>food allergens<span> most often linked to anaphylaxis — a serious, rapid-onset </span>allergic reaction<span> that may be ... to determine the presence of</span>allergen-specific<span> immunoglobulin E, an antibody that binds to </span>allergens<span> and triggers the release of chemicals that </span>cause<span> symptoms</span><span>.
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