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GrogVix [38]
3 years ago
8

How do lungs help cells in the body meet their needs?

Biology
1 answer:
nalin [4]3 years ago
7 0
The answer is B. They bring oxygen from the air into the body.

The lungs don’t produce or release oxygen so it’s not A. or D. The lungs do not transform oxygen into carbon dioxide cause our bodies need oxygen not carbon dioxide so it’s not C. Hope this helps!
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if threads are layered from top to bottom brown green red which layer will come into Focus first if you are using the microscope
fomenos
<h2>Answer with Explanation </h2>

If threads are layered from top to bottom brown green red. Green layer will come into focus first if you are using the microscope properly. Green colour has wavelength of 500-565 nm and frequency of 530-606 THz approximately. Due its properties it will come into focus first if you are using the microscope. If anything is covered by brown, red and green, it will appear only green color first by microscope due to its specific characteristics. The visibility of colors depend on the properties which it has.


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What would be the most likely result if humans stopped burning fossil fuels?
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Complete the T-chart by categorizing each statement as an advantage or disadvantage of sexual reproduction. Not all mutations ar
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Answer;

Advantages of sexual reproduction:

  • It provides genetic variation.

Disadvantages of sexual reproduction:

  • Not all mutations are passed on.
  • It is time and energy consuming.
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Sexual reproduction is a type of reproduction in which genetic information from two genders or sexes combine to produce a offspring. Both the gender produce gametes which fuse to form zygote which develops into an offspring.

There are several advantages and disadvantages associated with sexual reproduction as compared to the asexual reproduction.

The advantages are:

  • It provides genetic diversity to the species.
  • It naturally increases the levels of diseases resistance throughout the species.
  • It can lead to the incorporation of evolutionary advancements in a population.
  • It can give a rewarding experience specially in human beings as it releases dopamine in the brain.
  • It also helps in improving health, growth of brain cells, relieving pain, can act as anti-depressant etc.

The disadvantages are:

  • It is time and energy consuming process.
  • Reproduction is uncertain as it is not a 100% successful method for producing offspring.
  • Not all favorable variations or mutations are passed on to the next generation.
  • Number of offspring produced is usually low.

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4 years ago
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