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KengaRu [80]
2 years ago
12

Which evolutionary mechanism caused the increase in dark-colored Biston betularia moths in England in the 1800s?

Biology
1 answer:
denis-greek [22]2 years ago
4 0
The answer is c I did this like 2 days ago
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How does desertification affect the productivity of soil?
IrinaK [193]

Desertification extends beyond the expansion of existing deserts to include land degradation due to human activity in drylands. Land degradation destroys or reduces the productivity of the soil, and is caused by excessive and unsustainable activities such as deforestation, overgrazing, poor land management, soil salinization, and soil erosion.

Sure hope this helps you :D

5 0
2 years ago
Which organism would MOST LIKELY be the main source of oxygen in a forest ecosystem
Damm [24]

Answer:

Algea

Explanation:

Algae produce about 330 billion tons of oxygen each year.

3 0
3 years ago
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What scalar quantity do you need to determine the rate of motion?
Sunny_sXe [5.5K]

Answer:

A vector quantity has a direction and a magnitude, while a scalar has only a magnitude. You can tell if a quantity is a vector by whether or not it has a direction associated with it.

Explanation:

Example: Speed is a scalar quantity, but velocity is a vector that specifies both a direction as well as a magnitude.

4 0
3 years ago
Aphids are tiny insects that feed on plants. Ladybugs are helpful to plants because they eat aphids.
sergejj [24]

Answer:

Prey

Explanation:

The aphids are the prey of the ladybug.

8 0
3 years ago
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Explain how the circulatory system is able to transport the blood under high pressure from the heart to the rest of the body
expeople1 [14]

Transport of blood under high pressure is done through the concerted efforts of the heart and arteries.

<h2>The circulatory system is the network of the heart, arteries, veins, and capillaries responsible for the movement of blood around the body.</h2>

Transporting blood under high pressure can be explained in the following steps:

  1. Contraction of the heart ventricles creates blood under high pressure
  2. High pressured blood is removed from the heart through the arteries. In addition, the arteries are able to contract and expand, thus are elastic
  3. The lumen of the arteries is narrow thus helping in maintaining high pressure

As a result of the above, the high pressure of blood is maintained and transported to the extremities of the body.

To learn more about the circulatory system see: brainly.com/question/3305440?referrer=searchResults

SPJ12

6 0
2 years ago
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