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masha68 [24]
2 years ago
10

Various species of the flowering plant of the genus Chrysanthemum have 18, 36, 54, 72, and 90 chromosomes. The variation is like

ly due to:
Biology
1 answer:
Degger [83]2 years ago
8 0

Various species of the flowering plant of the genus <em>Chrysanthemum </em>have 18, 36, 54, 72, and 90 chromosomes. The variation is likely due to polyploidy.

<h3>What is polyploidy?</h3>

Polyploidy can be defined as the number of complete sets of chromosomes in a given cell of an organism.

A diploid organism contains two complete sets of homo-logous chromosomes in its somatic cells.

Many organisms used polyploidy as an evolutionary strategy for adaptation to challenging environmental conditions.

Learn more about polyploidy here:

brainly.com/question/1237319

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amid [387]
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7 0
3 years ago
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Over the past 300 years, how did the role of the ocean change with respect to the amount of carbon dioxide in the atmosphere
spin [16.1K]

Answer:

Ocean plays the role of regulator.

Explanation:

The role of the ocean change with respect to the amount of carbon dioxide in the atmosphere because oceans plays a role of regulator and balancer. When there is high amount of carbon dioxide in the atmosphere due to burning of fossil fuels and volcanic eruptions so the ocean absorb that extra amount of carbon dioxide from the atmosphere while on the other hand, when there is decrease in the concentration of carbon dioxide in the atmosphere, the ocean gives its carbondioxide gas to the atmosphere to regulate the concentration.

4 0
3 years ago
Briana is listing some pros and cons of recycling bottles. What can she list in the “Con” column? Pro Con Uses less energy to ma
poizon [28]

Answer:

Requires additional labor

Explanation:

The pros are the positive points and cos are the negative points.  

Cons of recycling bottle  

Cons of recycling bottle will include all those factors which are affecting the nature or cost in some or the other way.  

Out of all the given options, requires additional labor is a negative point as it points out the limitation of recycling of plastic. Plastic cannot be recycled if it requires extensively large labor force. Also large labor force will lead to higher cost.

Rest all other option are in support to the practice of plastic recycling.  

6 0
3 years ago
What is present in human blood that ensures blood ph is maintained at about 7.4?
Anvisha [2.4K]
Bicarbonate buffer system. Human blood contains large amounts of carbonic acid, which is a weak acid, and bicarbonates, a strong base. If blood pH falls below 6.8 or rises above 7.8, one can become sick or die. This bicarbonate buffer system help maintain blood pH at 7.4. The bicarbonate neutralizes excess acids in the blood while the carbonic acid neutralizes excess bases.
5 0
4 years ago
What's the main characteristic of porosity?
aev [14]

Answer:

The answer should be D

Explanation:

because poroslty of a rock is a measure of its ability to hold a fluid. mathematically, it is the open space in rock divided by the total rock volume.

6 0
3 years ago
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