46.6% oxygen (o)
27.7% silicon (si)
8.1% aluminum (al)
5.0% iron (fe)
3.6% calcium (ca)
2.8% sodium (na)
2.6% potassium (k)
2.1% magnesium (mg)
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consider the layers of the earth seen here. where would you find the elements listed above?
a) atmosphere
b) core
c) crust
d) mantle

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of

Which part of the spine is likely to cause a nerve signal to travel faster? a. backbones b. white matter c. nuclei d. gray matter