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Sergio [31]
3 years ago
7

What is responsible for the Magnetic Field around Earth? *

Biology
2 answers:
Eddi Din [679]3 years ago
4 0

Answer:

The Earth's molten iron core

Explanation:

The Earth's magnetic field is mainly due to the<em> convection current</em> flowing in its <u>molten iron core</u>. It is considered to be a great conductor of electricity and is also dubbed as an <em>"invisible river." </em>If people were to study the magnetic field, they have to follow the movement of the molten iron that flows about thousands of miles every hour. The magnetic field is so strong that it can pass through the<em> earth's core, crust and even reach the space</em> (although it becomes weaker at this point).

nignag [31]3 years ago
3 0

Answer:

number 3

Explanation:

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The Calvin cycle is another name for the
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A. light-independent reactions.
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Why do people believe false claims?
Luda [366]

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because they are at times not listening

Explanation:

6 0
3 years ago
Give two reasons-<br> Bacteria can be considered as a chain between animals and plants
Crank

Bacteria can be considered as a chain between animals and plants because it give benefits both plant and animal.

<h3>What is unique about bacteria?</h3>

Bacteria has unique features that can benefits both plant and animal. Bacteria like Rhizobium make soil fertile for plants whereas Lactobacillus bacteria help to convert milk into curd.

So we can conclude that Bacteria can be considered as a chain between animals and plants because it give benefits both plant and animal.

Learn more about bacteria here: brainly.com/question/6941760

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8 0
2 years ago
Which substance on the plasma membrane helps identify chemical signals from outside the cell?
nikdorinn [45]

Answer:

The correct answer is carbohydrate chain.

Explanation:

Plasma membrane contain three types of protein  a peripheral protein b transmembrane protein and c GPI anchored protein.

    Some membrane protein basically peripheral proteins contain oligosaccharide chain arranged towards the extracellular region of the plasma  membrane with respect to the surface of that glycoprotein.

   The oligosaccharide chain of glycoprotein play an important role in to identify signals from outside the cell.These signals may include the entry of virus particles inside our body,protein targeting etc.

8 0
3 years ago
True or false: Theoretically, it is possible (but very difficult) for a population to not evolve for a while.
Debora [2.8K]

It is true that it is possible for a population to not evolve for a while.

There is something called the Hardy-Weinberg theorem, which characterizes the distributions of genotype frequencies in populations that are not evolving.

There are 5 Hardy-Weinberg assumptions:

  • no mutation
  • random mating
  • no gene flow
  • infinite population size
  • and no selection (natural nor forced).

You can see that some of these are kinda extreme and really hard to get, but with approximations, we can work.

For example, instead of an "infinite population size" we have enough with a really large population, such that genetic drift is negligible.

Concluding, yes, it is possible (but really difficult) for a population to not evolve for a while (at least, in nature), as long as the 5 assumptions above are met.

If you want to learn more, you can read:

brainly.com/question/19431143

7 0
3 years ago
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