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drek231 [11]
2 years ago
6

Answer true or false

Biology
2 answers:
Ann [662]2 years ago
6 0
1. Yes 2.no 3.yes 4.yes 5.yes 6.yes 7.yes
masha68 [24]2 years ago
3 0
1. true
2.false
3. true
4. true
5. true
6. true
7. true
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What are sunspots? Pls help
liq [111]

Answer:

Sunspots are darker, cooler areas on the surface of the sun in a region called the photosphere.

Explanation:

The photosphere has a temperature of 5,800 degrees Kelvin. Sunspots have temperatures of about 3,800 degrees K. They look dark only in comparison with the brighter and hotter regions of the photosphere around them.

Sunspots can be very large, up to 50,000 kilometers in diameter. They are caused by interactions with the Sun's magnetic field which are not fully understood. But a sunspot is somewhat like the cap on a soda bottle: shake it up, and you can generate a big eruption. Sunspots occur over regions of intense magnetic activity, and when that energy is released, solar flares and big storms called coronal mass ejections erupt from sunspots.

5 0
3 years ago
Proto‑oncogenes are genes that have the potential to become oncogenes through either mutation or an increase in expression. Clas
algol [13]

Answer:

<u>Proto-oncogenes</u>

  • These genes code for protein that normally promote cell division
  • Mutations that increase activity of these genes may lead to cancer

<u>Tumor suppressor genes</u>

  • These genes code for protein that normally prevent uncontrolled cell division
  • Some products of these genes normally function in repairing damaged DNA
  • Mutation that decrease activity of these genes may lead to cancer.

Explanation:

<em>Proto-oncogenes</em> are group of genes that ordinarily help cells develop. At the point when a proto-oncogene mutates or there are such a large number of duplicates of it, it turns into a "terrible" quality that can turn out to be forever turned on or activated when it shouldn't be. At the point when this occurs, the cell becomes wild, which can prompt malignant growth. This terrible quality is called an oncogene.

Tumor suppressor genes are normal gene that hinder cell division, fix DNA missteps, or tell cell when to undergo apoptosis (die). At the point when tumor suppressor gene don't work appropriately or inactivated, cells can develop uncontrollable growth, that ultimately lead to cancer.

7 0
3 years ago
If someone could help me figure out how to do these sorts of problems I would really appriciate it​
Pani-rosa [81]

Answer:

The possible genotypes are:

I^AI^B, I^AX^H, I^AX^h, I^BI^B, I^BX^H, I^BX^h, X^HX^H, X^HX^h

<em> good luck, i hope this helps :)</em>

8 0
3 years ago
Explain how volcanic activity, run-off and dissolved gases affect the chemical composition of seawater
Angelina_Jolie [31]

Answer:

Seawater is a complex mixture of 96.5 percent water, 2.5 percent salts, and smaller amounts of other substances, including dissolved inorganic and organic materials, particulates, and a few atmospheric gases, so it would affect the water negatively.

3 0
3 years ago
Women who become pregnant for the first time at a later reproductive age (35 years or older) are at risk for which complications
fgiga [73]
Preterm labor
Bleeding in the first trimester
Chromosomal anomalies
Women also have a higher risk of developing certain complications during pregnancy, such as gestational diabetes, preeclampsia, premature detachment of the placenta (premature separation of the placenta and uterine wall) and placenta previa (when the placenta moves to the lower part of the uterus, covering the cervix partially or completely).
3 0
3 years ago
Read 2 more answers
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