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Ulleksa [173]
3 years ago
10

Arrange the events in the correct order to describe how the magnetic field forms around Earth.

Biology
1 answer:
horsena [70]3 years ago
6 0
The correct sequence of events is : C,D,B,A.
Iron rich magma in the earth's core heats up because of radiation and the pressure exerted by the other layers of the earth. This heat in the crust trigger convection currents in the mantle. The magma closest to the core will be hotter and therefore less dense than other layers. Being less dense the layer will rise towards the crust, eventually becoming cooler and sinking back down in a circular motion.
The continued circular motion creates electric currents which then generates the magnetic field.
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Explanation:

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How are the functions of a carbohydrate and lipid similar
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3 years ago
Skin color in a certain species of fish is inherited via a gene with four different alleles. Each allele confers a unit of color
jeka57 [31]

Answer:

25% of the progeny with genotype S3S4 is expected to express 5 units of color

Explanation:

<u>Available data</u>:

  • Skin color in a certain species of fish is inherited via a gene with four different alleles
  • allele S1 confers one unit of color, S2 has two units, S3 has three units, and S4 confers four units.

Cross:

Parentals) S1 S3   x   S2S4

Gametes) S1   S3      S2     S4

Punnett square)       S1           S3

                      S2     S1S2      S2S3

                      S4     S1S4      S3S4

F1) 1/4 = 25% of the progeny is expected to be S1S2, expressing 3 units of color ⇒ allele S1 provides one unit, allele S2 provides two units of color

    1/4 = 25% of the progeny is expected to be S2S3, expressing 5 units of color ⇒ allele S2 provides two units, allele S3 provides three units of color

    1/4 = 25% of the progeny is expected to be S1S4, expressing 5 units of color ⇒ allele S1 provides one unit, allele S4 provides four units of color

    1/4 = 25% of the progeny is expected to be S3S4, expressing 7 units of color ⇒ allele S3 provides three units, allele S4 provides four units of color

25% of the progeny with genotype S3S4 is expected to express 5 units of color

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2 years ago
What type of bonds connect the deoxyribose sugars to the phosphate groups?
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Covalent bonds connect the sugars to the phosphates.
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3 years ago
Which type of cell is lactobacillus
Deffense [45]
Lactobacillus is a kind of bacteria.
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