1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olya-2409 [2.1K]
2 years ago
11

16. Which of the following explanations accounts for the

Biology
2 answers:
frez [133]2 years ago
7 0

Answer:

A

Explanation:

Due to the inhibition of convection by the magnetic fields, these areas (usually occur in pairs corresponding to the two poles), the hot plasma from the sun’s interior doe not reach the surface of these areas hence creating local regions that are cooler than the rest of the photosphere. This cooler regions appear darker when observed with a telescope and are called sunspots.

Phantasy [73]2 years ago
6 0

so the answer is : B. Magnetic field reversal causes portions of the sun to die slowly over time, leaving dark marks.

<h2>Further explanation  </h2>

Sunspots are the most prominent features of the sun; medium size spots about the size of the earth. Sunspots form and disappear for days or weeks. Sunspots are the coldest part of the sun and usually appear in pairs. Sunspots occur when a strong magnetic field appears on the sun's surface and causes the area to cool, from 6000 ° C to 4200 ° C; the area appears as a dark spot. The darkest area at the center of the spots is called the umbra; this is where the strongest magnetic field. The less dark areas around the umbra are called the penumbra. Sunspot activity is an 11-year cycle. Sunspots are an indicator of magnetic activity in the sun. Magnetic fields in spots store energy that is thrown in flares. As a result, flares usually appear in cycles that resemble 11-year cycles. Sunspots usually occur in groups (usually as simple pairs) but sometimes in complex arrangements with many complex spots and shapes. This unusual area often produces flares. Space weather forecasters use the complexity and shapes of sunspots to predict flares — the more complex the groups of spots there are, the more likely a flare will occur there.

For more than 300 years, the average number of sunspots regularly varies in an 11-year cycle. Every 11 years, the polarity of the magnetic field in the solar hemisphere changes. So, the complete solar magnetic cycle is 22 years.

<h3>Learn More : </h3>

Sunspots; brainly.com/question/1652375,https://brainly.com/question/3095225,https://brainly.com/question/12701363.

<h3>Details </h3>

Class: Junior high.

Subject: Biology.

Keywords:  Sunspot, magnetic, earth.

You might be interested in
How are environmental issues and food production related?
olga nikolaevna [1]

Answer: Food consumption and production have a considerable impact on the environment.  Food production contributes

Explanation: , for example, to climate change, eutrophication and acid rain, as well as the depletion of biodiversity. It is also a considerable drain on other resources, such as nutrients, land area, energy, and water.

6 0
3 years ago
Match each part of Sammi's model to the bodily structure it represents. One bodily structure has already been labeled for you.
KiRa [710]

Answer:

corrugated cardboard tube - digestive tract

irregular surfaces on the corrugated tube - villi

pump - heart

Plastic tubing - blood vessels

Explanation:

The corrugated cardboard tube represents the digestive tract.  The give away was the presence of the irregular surfaces within the tubes. This is called the villi. The villi is responsible for the absorption of food after digestion into the body.

Irregular surfaces on the corrugated tube represent the villi. They are tiny hair-like structures that are in the small intestine, that are responsible for the absorption of food into the bloodstream.

The pump represents the heart. The heart is the only organ in the body that provides the pressure force that pushes the blood throughout the body. In this model, the pump will most likely be performing the same function.

The plastic tubings are meant to contain one form of fluid or the other. Judging from that, they can be said to represent the blood vessels. This is because they are connected to the heart and are meant to transport bodily fluids around the body

4 0
3 years ago
Endocrine and digestive systems major organ
never [62]

Answer:

The major glands of the endocrine system are the hypothalamus, pituitary, thyroid, parathyroids, adrenals, pineal body, and the reproductive organs (ovaries and testes). The pancreas is also a part of this system; it has a role in hormone production as well as in digestion.

Explanation:

6 0
3 years ago
Behavioral science includes the fields of psychology, marketing, accounting, and geology. True or False True False
DanielleElmas [232]
False, not really sure if this is correct
8 0
3 years ago
___________ is an interaction between two or more organisms in which one species lives on or in another and both benefit.
WARRIOR [948]

Answer:

Endosymbiosis

Explanation:

I just learned this in my previous lesson of biology. Endosymbiosis - a relationship between two organisms where one lives within another and both benefit.

6 0
3 years ago
Other questions:
  • What is the only force that acts on a falling body when it is in free fall
    12·2 answers
  • When the rate of loss of actin subunits from the pointed end of an actin filament is balanced by the rate of their addition to t
    13·2 answers
  • Which of the following statements best describes the structure and function of a carbohydrate
    14·2 answers
  • True or False:
    15·1 answer
  • The atomic number is the number of ______ in an atom.
    10·2 answers
  • A series circuit is one that:
    14·1 answer
  • What is the sidereal period used in Kepler's third law?
    9·1 answer
  • Which type of organisms are found at the base of an energy pyramid?
    8·2 answers
  • Please can anyone help me out in this whole definition actually I can't understand it ​
    10·1 answer
  • Why do organelles have different structures
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!