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gogolik [260]
3 years ago
15

The main organ of the muscular system are the Heart Brain Muscles Bones

Biology
2 answers:
MatroZZZ [7]3 years ago
4 0

Answer:muscles

Explanation:muscular/ muscles take a hint the answer is in the question X_X

Misha Larkins [42]3 years ago
3 0

Answer: Muscles is the correct answer

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All of the following are classes of cnidarians except
DIA [1.3K]

Answer:

polyps

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2 years ago
What is the relationship between mitosis and cell division
Orlov [11]
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6 0
3 years ago
Which of the following best explains the factors that led to the dust bowl?
faltersainse [42]

Answer;

C. Poor farming techniques that killed the soil were combined with drought.

Explanation;

-The Dust Bowl was caused by several economic and agricultural factors, including federal land policies, changes in regional weather, farm economics and other cultural factors.

-After the Civil War, a series of federal land acts coaxed pioneers westward by incentivizing farming in the Great Plains.

3 0
2 years ago
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Which statements describe steps taking place in the nitrogen cycle shown above?
astraxan [27]

The statements that describe steps taking place in the nitrogen cycle are

  • Many biotic and abiotic factors play a role in recycling nitrogen ( A )
  • Farming practices and chemicals lead to a build-up of nitrates in the soil ( E )

Nitrogen cycle is biochemical process whereby nitrogen is converted to various chemical forms as it passes through the atmosphere, Marine and terrestrial ecosystems .

Nitrogen cycle undergoes four ( 4 ) important processes which are :  

  • Fixation
  • Ammonification
  • Nitrification and
  • Denitrification

Hence we can conclude that The statements that describe steps taking place in the nitrogen cycle are :

Many biotic and abiotic factors play a role in recycling nitrogen and

Farming practices and chemicals lead to a build-up of nitrates in the soil

Learn more about Nitrogen cycle : brainly.com/question/1380063

5 0
2 years ago
The formation of pyrimidine dimers results from which of the following?
umka2103 [35]

Answer:

exposure to ultraviolet radiation is a correct answer.

Explanation:

Ultraviolet light exposure results in the formation of pyrimidine dimers. Ultraviolet radiation damage the DNA by resulting in chemical changes.

Ultraviolet radiation is absorbed by the pyrimidine bases( cytosine and thymine in DNA) and result in the formation of covalent bonds between the succeeding bases.

The formation of the pyrimidine dimers results in the distortions of DNA helix and disrupt the base-pairing during the replication of DNA which results in a mutation.

5 0
3 years ago
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