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tangare [24]
3 years ago
12

What makes the Earth center act like a magnet

Biology
1 answer:
hoa [83]3 years ago
7 0

Answer:

Explanation:

The flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet. Deep in the Earth, molten metal flows due to heat which causes convection.

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Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional
miv72 [106K]

Answer:

The dendrites are important for receiving action potential or other stimulation in order for neurons to become activated. Dendrites are electrical signals that receive extensions of the cytoplasm. These signals come in two fundamental forms: inhibitory and excitatory.

Explanation:

3 0
3 years ago
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the element nitrogen has an atomic number of 7 and an atomic mass of 14 how many protons, neutrons and electrons are in a atom o
Nat2105 [25]

Answer: By definition, if  the atomic number  = 7 , then there are 7 protons, 7 electrons, and 8 neutrons!

Explanation:

The atomic number is by definition the number of protons, positively charged particles, contained within the atomic nucleus. So if there are 7 protons, there MUST be 7 electrons, 7 negatively charged particles. Why? Because matter is electrically neutral, and positive and negative particles must be equal.

Electrons have negligible mass; the mass number depends on the number of protons contained within the nucleus, PLUS the number of neutrons. Given that we have  15  N , there must be 8 neutrons contained within the nucleus.  does this help?

3 0
3 years ago
The four organisms illustrated are all capable of various forms of asexual reproduction. What processes, involving DNA and RNA,
Bad White [126]
I think the answer is C because at the first the DNA shows the copies of itself when it replicate n then it transcripts n transfer the coded message for protein synthesis from DNA onto mRNA n then it translates From the cytoplasm wher the RNA enters when it translate the part of protein synthesis from the time of amino acids are assembled in a particular sequence...The transcription happens from a nucleus
6 0
3 years ago
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________ is the main form in which carbon dioxide is carried in the blood.
V125BC [204]

Carbon dioxide is transported in the blood in three ways: (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin. Source: https://academic.oup.com/bjaed/article/5/6/207/331369

8 0
4 years ago
Consider the data on cliff swallow mortality. Why is this an example of directional selection?Overall genetic variation decrease
Gala2k [10]

Answer:

The average trait value changed in one direction.(In this case, larger size)

Explanation:

In evolution a natural selection can be disruptive, directional or stabilizing

In stabilizing no extreme trait is favored hence provides intermediate values .

Disruptive selection both extreme traits are favored over the intermediate trait.

Directional, the enviroment will favor the survival of one trait hence a change in direction either towards the left or the right.

In the case of swallow cliff mortality, selection favored the larger size.

8 0
3 years ago
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