Which statement best describes the crust?
a) which statement best describes the crust?
b)it is the outermost layer of earth, composed of solid rock and divided into sections called plates.
c)the crust is made out of solid nickel and iron.
d)the crust is made of molten rock that flows like a thick, gooey syrup.

Crust is the outermost layer of Earth, composed of solid rock and divided

into sections called plates.

The crust can be defined as the outermost part of the earth with a

composition of mainly rocks and oxygen. The type of rocks include igneous,

metamorphic and sedimentary.

The rocks are however divided into various sections known as plates which

forms mountains after a while.

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A.It is the outermost layer of Earth, composed of solid rock and divided into sections called plates.

you are certainly talking about this picture:

a: is the label of the white square, it is showing the  replication fork, formed by helicase (d) ==> so it is the site of dna separation and replication 

b: is a new dna brand that is following directly the replication fork, so it is continuous ==> built continuously from 5' to 3

c: dna polymerase cannot replicate dna on its own, it needs the of their proteins, and one of them plays the role of a clamp which fixes  the dna with the dna template and increases  the processivity of the enzyme. ==>   stops polymerase from falling off the  template.

d: is the enzyme responsible for forming the replication fork (helicase) ==> unwinds and separates dna into two strands

e: is the delayed strand, it is built  in the opposite sense of the helicase, so dna will be built in fragments ==> built  fragments from 5' to 3 joins

and finally f: is the enzyme that builds  the new dna strand (dna polymerase) ==>   adds nucleotides to make a new dna helix.

credit: gradman555p98x9p

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