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harkovskaia [24]
3 years ago
7

Visible sunspots vary in number according to a cycle of how many years?

Biology
2 answers:
bija089 [108]3 years ago
6 0
On the average, visible sunspots cycle is about eleven years. But there can be variations in the cycle.
Alchen [17]3 years ago
4 0
Generally, the sun observes a solar cycle of eleven years. In this cycle, there are fluctuations in the activity, such as the ejected levels of solar radiation, and in the appearance of the sun, such as changes in the amount and size of sun spots, solar flares and other phenomena that occur on the sun's surface.
These changes also affect phenomena on earth, especially the auroras. 
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how do oxygen and carbon dioxide cross from the alveoli through the capillary walls and into the blood?
Fofino [41]

Answer:

The concentration gradient of oxygen in your lungs wants to flow toward homeostasis and oxygen is bound on red blood cells by hemoglobin, along with the attraction of oxygen to hemoglobin. The concentration gradient from carbon dioxide from the capillary to the lungs. There is more oxygen in your lungs (alveoli) than there is carbon dioxide and everything want to reach homeostasis, or level amounts on both sides.

Explanation:

6 0
3 years ago
What are the the similarities and differences of ovary and ovulation?
Wewaii [24]

Answer:

Ovary is an organ of the female reproductive system which is involved in the production and releasing of an ovum or egg. From the ovaries, the egg is released into the Fallopian tube in the uterus.

Ovulation can be described as the process in which an egg is released from the ovary. It may or may not be fertilized after being released.

Similarities of the ovary and ovulation are that both refer to releasing of the egg.

4 0
3 years ago
A 3 column by 5 row table. Column 1 is titled Activity with the following entries: use of materials in production, release of ca
Elena-2011 [213]

Answer:

Based on the data presented, PLASTIC

bags have less impact on Earth’s resources. Even though PAPER

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bags uses more of Earth’s materials and releases more carbon into the atmosphere.

Explanation:

hope this helps <3

4 0
2 years ago
Which stage of the cell cycle results in two identical cells?
ludmilkaskok [199]

Which stage of the cell cycle results in two identical cells?

Answer:

Mitosis because mitosis itself consists of five active steps.

Hope I helped

--Jay

3 0
3 years ago
Read 2 more answers
CAN SOMEONE HELP ME PLEASEEE
vladimir2022 [97]

I think it might be <em>natural disasters.</em>

8 0
3 years ago
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