What part of the body has lots and lots of human cells, where we can easily access these cells and extract DNA?

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Answer 1

Answer:

Answer:

i think it is bone marrow or the brain because every cell has dna

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the biome is best described as the regions of earth that support _____. A. plant life B. animal life C. all life D. human life
What species has the greatest impact on the biosphere?
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According to the Universal Law of Gravitation, every object attracts every other object in the universe. Why can’t you feel the force of attraction between you and Mars?A. There is no force between you and mars.
B. Your mass is too low.
C. Mars is a larger planet than Earth.
D. Mars is a long distance away.

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The correct answer is option D. Mars is a long distance away.

According to the universal law of gravitation, the effect of the force of gravity decreases as the distance increases. The gravitation force is inversely proportional to the radius or the distance. So, the gravitational force exhibited by the Mars is not experienced by us due to the large distance.

The correct response for why you can't feel the force of attraction between you and Mars is because D. Mars is a long distance away, and thus why there is no gravitation attraction between you and Mars.

Which term describes a pure substance that is made up of only one type of atom?1)matter
2)rock
3)compound
4)element

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ELEMENT

A pure substance is one that is composed of only one type of material.

This material may not necessarily be made from only one type of element, but can be composed from different elements yet be pure. An example of this is water. Water is made up of oxygen and hydrogen. Water that is free of contamination is termed as pure.

Examples of pure substances are:

1.Gold

2. Iron

3. Carbon

4. Sugar

5. Nitrogen gas

6. Oxygen gas

7. Salt

Element describes a pure substance that is made up of only one type of atom. Elements cannot be broken down into more simpler substances. There have been 118 elements discovered by scientists so far.

What can be the bases for the division of a countryin federal structure?Give short introduction to each of them.

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Answer:

he topography of Nepal is quiet diverse. We have himalayas, hills and the terai. So topography, ethinicity, resources,language had been the bases of division of a country of the federal sturucture.

Explanation:

i hope this helps! :)

“This leaf is 4 inches long.” What kind of observation is this?

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This observation would be quantitative because it says how many.

its quantative I did this last year in science

Which four body systems interact to allow a person to sneeze? A) Muscular, immune, nervous, respiratory B) Nervous, respiratory, circulatory, skeletal C) Respiratory, endocrine, skeletal, circulatory D) Lymphatic, skeletal, respiratory, muscular

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The four body systems that interact to allow a person to sneeze are the muscular system, immune system, nervous system, respiratory system (Option A).

Sneezing can be defined as an involuntary expulsion of air that helps to remove irritant particles from the nose and/or throat.

In the first place, the brain (i.e., the nervous system), when the respiratory epithelium (i.e., the respiratory system) is irritated, the endings of the cranial nerve sends a signal message to the brain to induce a sneeze reflex.

The muscles involved in sneezing include the chest muscles, abdominal muscles, diaphragm, and muscles that control vocal cords.

Sneezing is a fundamental immune response aimed at clearing the respiratory system of harmful pathogenic microorganisms (e.g. bacteria) and viruses.

In conclusion, the body systems that interact to allow a person to sneeze are the muscular system, immune system, nervous system, respiratory system (Option A is correct).

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Answer:

Explanation:

Muscular, immune, nervous and respiratory systems are involved in the process of sneezing. Sneezing is the natural defense mechanism of the human body. When any foreign particle enters the respiratory system then it irritates the respiratory epithelium and sends a signal to the brain through the 5th trigeminal nerve and sneezing reflex starts which involved skeleton muscles and respiratory system.

What happens to water that is not removed from land by evaporation?

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it gets evaporated but before, it goes underground and redoes the cycle until is does get evaporated

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