Answer:
* they give the lungs a really big surface area.
* they have moist, thin walls (just one cell thick)
* they have a lot of tiny blood vessels called capillaries.
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Answer:
B. Metamorphic
Explanation:
Metamorphic rock is combination of different rocks and builds off pre-existing rocks. This creates layers.
the black plague took a toll no the population back then and claimed alot of lives
I think the end of the question is "g" not "c". To get the offspring wanted, there are two types of genotype, one is TTgg, the other one is Ttgg. The chance of getting TT or Tt is 1-(1/2)*(1/2)=3/4. The chance of getting gg is (1/2)*(1/2)=1/4. So the total chance is (3/4)*(1/4)=3/16.
