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3 years ago

Which of the following statements describes how material can differentiate into different layers? Choose all that apply.

Biology

2 answers:

Sunny_sXe [5.5K]3 years ago

7 0

Answer:

Option- (A) and (C): Both, of them are valid points.

Explanation:

Materials differentiation inside earth's layers:

Earth layers are differentiated in the different layers of earth layers, on the basis of different properties they have, as the earth is made up of a very fine layers of different elements.

Below the continental plates we have, the following layers inside earth's structure:

The mantle,
The outer core,
The inner core.

As due to earth's properties it cools down all the materials in such a manner that the denser material sinks to the center, while the less dense floats near to the mantle layer of the earth.

timofeeve [1]3 years ago

4 0

I guess the answer is A and C

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Read 2 more answers

A mutation that involves one or a few nucleotides is called

inysia [295]

A mutation that involves one or a few nucleotides is called

a) mutagen

b) inversion

c) point mutation

d) translocation

Answer:

c) point mutation

Explanation:

When only one or a few nucleotides of a gene are changed by mutation, this is called a point mutation. A point mutation can add one additional nucleotide to the wild type gene or may delete or substitute a nucleotide from it. For example, if a wild type gene sequence is "ATATATATA", then the addition of "C" at the position 4 will change it into "ATACTATATA". This addition of new nucleotide is called point mutation since only one nucleotide is added to the gene. Point mutations can cause serious genetic disorders such as sickle cell anemia.

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3 years ago

Identify the evolutionary forces that can cause allele frequencies to change from one generation to the next.

Irina-Kira [14]

Allele frequencies to change from one generation to the next.-

B. Mutation; C. Random genetic drift; D. Migration; F. Natural selection

Selection, mutation, migration, and genetic drift are the mechanisms that effect changes in allele frequencies.
When one or more of these forces are acting, the population violates Hardy-Weinberg assumptions, and evolution occurs.

Why do allele frequencies change from one generation to the next?

Random selection: Allele frequencies may fluctuate from one generation to the next when people with particular genotypes outlive those with different genotypes.

No mutation: Allele frequencies may fluctuate from one generation to the next if new alleles are produced via mutation or if alleles mutate at different rates.

What are 5 factors that cause changes in allele frequency?

A population, a collection of interacting individuals of a single species, exhibits a change in allele frequency from one generation to the next due to five main processes.
These include natural selection, gene flow, genetic drift, and mutation.

Learn more about allele frequency

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The complete question is -

Identify the evolutionary forces that can cause allele frequencies to change from one generation to the next. Check all that apply

A. Inbreeding

B. Mutation,

C. random genetic drift

D. migration

E. extinction

F. natural selection

6 0

2 years ago