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cricket20 [7]
3 years ago
15

Explain the connection between earths magnetic field and iron

Biology
1 answer:
german3 years ago
7 0
Magnetism is a class of physical phenomena that are mediated by magnetic fields. Electric currents and the magnetic moments of elementary particles give rise to a magnetic field, which acts on other currents and magnetic moments.The Earth's magnetic field is somewhat caused by the composition of the earth's core which is rich in iron minerals. There is a solid inner core that is made of iron which makes up to 2/3 of the moon's size. The charged metal of the iron produces electric currents, consequently resulting to Earth's magnetic field.
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Climate change in the form of global warming (an abiotic factor) has slowly decreased habitat for the arctic seals. What are the
almond37 [142]

The limitations of population dynamics simulation in predicting the changes that may occur due to climate change is that arctic seals can adapt to these climatic conditions or migrate.

<h3>What is population dynamics?</h3>

Population dynamics is the part of ecology that studies the variations in the occurrence of individuals of the same species (population) and seeks to define the cause of these variations.

Example: with the hunting of alligators, there is an increase in the population of piranhas, thus resulting in a variation of occurrence.

With this information, we can conclude that the limitations of population dynamics simulation in predicting the changes that may occur due to climate change is that arctic seals can adapt to these climatic conditions or migrate.

Learn more about Population dynamics  in brainly.com/question/13419257

#SPJ1

8 0
1 year ago
Is extensive loss of hair observed in humans and whales an example of homoplasy or homology? see section 25.1 (page 497) ?
marin [14]
I believe that hair and limbs are homology because all mammals have hair and similar limb structure. Hair loss and social behavior on the other hand are homolasy because not all mammals have them. Homology is the similar traits due to common ancestry while homoplasy is similar traits for other reasons other than common ancestry. 
3 0
3 years ago
Which market structure is BEST indicated by the photograph? A) monopoly B) oligopoly C) pure competition D) modified competition
leva [86]

Answer:

b.) oligopoly

Explanation:

7 0
2 years ago
Can you help with number 5? I didn’t feel like writing it.
Leno4ka [110]

From what I can see in the picture, the cell appears that it would take up half of the microscopes view if it were to be pushed to the very edge on one side.

That would be the radius. The radius is half of the diameter, and half of 0.8 mm would be 0.4 mm. The length of the cell is about 0.4 mm.

Now for the width. Since the diameter of the FoV (field of view) is 0.8, we can see that the cell doesn't reach both sides of the circle it is in. It also doesn't appear to take up half of it. So, to get the aprox. width of the cell, we're going to half the radius.

Half of 0.4 mm is 0.2 mm, so the width of your cell is about 0.2 mm.

7 0
3 years ago
1. What are 3 differences between prokaryotes &amp; eukaryotes?<br>Prokaryotes I Eukaryotes​
bazaltina [42]
Prokaryotes- lack a cell nucleus, unicellular, in the bacteria and archaea domain, lack mitochondria and chloroplast, microscopic

eukaryotes- contains a cell nucleus, multicellular, only in the eukarya domain, contains mitochondria and chloroplast, not microscopic
4 0
3 years ago
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