5369

Alexandra is researching the effects plate tectonics have on the shape of Earth. Which of the following is a result of plate tec

zloy xaker [14]

D)Heat within Earth

Explanation:

The heat from within the earth is as a result of plate tectonics. Plates on the earth are driven by heat within the earth through convection currents.

Plate tectonics suggests that the earth are broken into slabs that moves on the weak and ductile material called asthenosphere.
Heat from within the earth causes the melting of asthenosphere.
The riding lithosphere which is cold will sink into the asthenoshpere.
Hot mantle materials will move to the surface thereby setting up a convection current.
Heat from within the earth rises to the surface due to plate movement.

Learn more:

Lithosphere brainly.com/question/9582362

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8 0

3 years ago

Ways to reduce global warming and climate change on biodiversity

Sphinxa [80]

Answer:

planting

reduce factory

7 0

3 years ago

What is an adaptive advantage of recombination between linked genes?

Georgia [21]

Answer:

New allele combinations are acted upon by natural selection.

Explanation:

Recombination may be defined as the process of the exchange of the genetic material between the homologous chromosomes of the non sister chromatid. The combined trait will be visible in the upcoming generation.

The recombination allows the generation of the new genes in the population. These new genes if beneficial for the population will be pass to the next generations. The new allele will be favored by the natural selection and increases the chance of survival of the population.

Thus, the correct answer is new allele combinations are acted upon by natural selection.

5 0

3 years ago

True or false type b blood has a antigens and anti-b antibody

STALIN [3.7K]

False. Type B blood has B antigens and anti-A antibodies.

5 0

4 years ago

The data obtained from the meselson–stahl experiment after one generation of replication eliminated the dispersive model of dna

Sedaia [141]

<h2>Given statement is false</h2>

Explanation:

According to dispersive model of DNA replication,DNA molecules are hybrids of parental and daughter DNA;In this model each individual strand is a combination of original and new DNA

Meselson and Stahl did an experiment on DNA replication using E.coli bacteria

E.coli was grown in a medium containing heavy isotope of nitrogen,bacteria took up the nitrogen and used to synthesize new biological molecules,including DNA
It was grown for many generations,the nitrogenous bases of the bacteria's DNA were all labelled with heavy nitrogen
Bacteria were then switched to light nitrogen isotope and allowed to grow for several generations
They then measured the density of the DNA using density gradient centrifugation
This method separates molecules such as DNA into bands by spinning them at high speeds in the presence of another molecule, such as cesium chloride
Each DNA produced two DNA molecules each with one new strand and one old strand called semi conservative replication(half of the parental DNA conserved in daughter DNA)
Each DNA strand act as a template for synthesis of new strand
Hence,dispersive model of DNA was eliminated and semi-conservative model of DNA replication was proved by the above experiment

3 0

3 years ago

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