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tekilochka [14]
2 years ago
12

Why is the Earth’s core made up mainly of iron while the crust contains mostly silicate minerals?

Biology
2 answers:
inn [45]2 years ago
8 0
Correct answer:
"<span>D. because iron is denser than silicate minerals"

Considering the formation of the Earth. We know that Earth's mass was formed by accretion. Over time, many many years, the material started to be organised by densities thanks to gravity. The Earth's core is mainly made out of iron because iron is denser than silicate materials which are the most common on the Earth's crust. </span>
solong [7]2 years ago
3 0
B. is the answer 
i hope
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In a two-point test cross, 36 of the offspring were recombinant types. The remaining 64 offspring were parental types. How many
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Answer:

36

Explanation:

A two-point test-cross is a cross between an individual with a double heterozygote genotype and a homo-zygous recessive individual in order to determine the recombination frequency between two linked genes. In genetics, one map unit (m.u.) can be defined as the measure of the distance (i.e., genetic distance instead of physical distance) between genes for which one (1) product of meiosis in one hundred (100) is recombinant. In this case, 36 of the offspring have the recombinant phenotype, while the remaining 64 offspring are not recombinant, and therefore both genes are separated by 36 mu (64 + 36 = 100 >> 36 mu).

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Alleles resistant to organophosphate insecticides first appeared in Asia and were introduced into mosquito populations in the Un
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<h2>Mutation & genetic drift</h2>

Explanation:

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2 years ago
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mariarad [96]

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The two types of lipoproteins are low density lipoprotein and high density lipoproteins

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2 years ago
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