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Whitepunk [10]
3 years ago
6

How do the Circulatory System and the Digestive System interact to keep the body healthy?

Biology
1 answer:
Georgia [21]3 years ago
6 0
They move blood through out your body
You might be interested in
In pea plants, tall plants (T) are dominant to short plants (t). If two heterozygous (Tt) individuals are crossed, what percent
nydimaria [60]

Answer:

1

Explanation:

          T                t

T       TT               Tt

t         Tt                tt

8 0
3 years ago
Nutrients are delivered and waste products are carried away from the cells of the posterior segment of the eye by blood vessels.
kolezko [41]

Answer:

The cells on the cornea are maintained by pheripheral vessels and surrounding fluids.

Explanation:

*- The capillaries of the limbus nourish the peripheral part of the cornea.

*- Tears supply of glucose in the tear film

*- Aqueous humor nourishing the outermost layers of the cornea the endothelium being a unicellular layer

6 0
3 years ago
Give 3 examples how meiosis differ from mitosis.
kkurt [141]

Answer:

Examples of cells that are produced through mitosis include cells in the human body for the skin, blood, and muscles.

Explanation:

In this case cells go through different phases called the cell cycle. The "normal" state of a cell is called the "interphase". The genetic material is duplicated during the interphase stage of the cell.

8 0
3 years ago
Effects of pollution might includea. inability to see the top of skyscrapers because of the smog.b. acid rain-induced destructio
poizon [28]

Answer:

e. all of these answers

Explanation:

Air pollution in addition to affecting people, animals, plants and goods, causes other problems related to the changes that occur in its composition, such as: climate change, acid rain and the destruction of the ozone layer phenomena that affect the planet globally and that it is necessary to stop urgently by taking the necessary measures.

Main effects of pollution:

- Effects on human health : It is difficult to determine the exact relationships between exposure to air pollution and diseases developed in humans, especially in the long term, they are not known exactly, but there is evidence that high concentrations of pollutants in the atmosphere are a danger for the human being.  it can also act as a vector to spread diseases

- Effects on the environment :

It is in the natural environment where the first signs of the harmful effects of air pollution were seen, plants and vegetation act as an indicator in this regard.

Some of the most common contaminants :

SO2 ; O3 ; Fluorides ;  HCL; Cl2; NO2

- Effect on materials :

Contaminants can affect materials by particle deposition or abrasion and also by chemical reactions between the contaminant and the material. For example : stone, iron and paintings

- SMOG:

SMOG is known as fog-type pollution that occurs in some cities when the combination of certain factors occurs, depending on weather conditions and certain pollutants.

Some of them are:

Industrial smog

Photochemical smog

This phenomenon (SMOG) occurs when the mixture of nitrogen oxides and volatile hydrocarbons emitted by cars and industries and atmospheric oxygen react with solar radiation and form ozone.

- Acid deposition.

It is a regional effect. It results from the transformation of atmospheric pollutants such as sulfur dioxide (SO2) and nitrogen oxides (NOx) into secondary pollutants such as sulfuric acid (H2SO4), ammonium nitrate (NH4NO3) and nitric acid (HNO3).

Therefore, air pollution caused by SOx and NOx affects water, soil and ecosystems.

- Water contamination

Pollution of the waters of a sick river and kill fish, but not only these, but all forms of aquatic life .

Pesticides and other toxic chemicals that are used in the domestic environment, farms and industrial production, and that are dumped into the water, cause fish death.

3 0
3 years ago
CQ9. If you want to use PCR technique to amplify markers located on six unlinked locations on the chromosomes, how many total un
irakobra [83]

Answer:

<em>This question includes the following options:</em>

<em>A.</em><em>1 - </em><em>B.</em><em>3 - </em><em>C.</em><em>6 - </em><em>D</em><em>.8 -</em><em> E.</em><em> 12</em>

PCR which stands for <em>"Polymerase Chain Reaction"</em> is a molecular biology procedure to quickly multiply a small sample of DNA into millions or billions of DNA copies for studying purposes.

<em>"Unlinked"</em> signifies that the markers are present in 6 various chromosomes, but to amplify those markers we would need <em>(</em><em>12</em><em>)</em> unique primer sequences, due to it is required to have the reverse and forward primers for every marker; thereby the answer is <em>(</em><em>E.</em><em>)</em>

7 0
3 years ago
Read 2 more answers
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