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spin [16.1K]
3 years ago
7

1. Why is it a good idea for humans to create models of how populations are changing?

Biology
1 answer:
ollegr [7]3 years ago
5 0
It is a good idea to create models of how populations are changing so that we are able to take a better look into what is causing it, if it is a bad or good thing that is taking place, how socioeconomic status may be playing an affect on the changes ect. It can also show if there are concerns coming on the horizon by looking at the change and poll shifts.
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Aqueducts are artificial channels for transporting water.
Effectus [21]

True

Explanation:

Aqueducts are constructed channels for transporting water from one point to another.

  • They were first constructed by the Roman to move water from hollow valleys and narrow areas.
  • Today, aqueducts include canals, ditches, gutters, channels that are used to carry water.
  • Aqueducts aids the movement of water from one place to another.
  • Development of aqueducts by the Romans was seen as a great advantage in that civilization.

Learn more:

Canals brainly.com/question/11377972

#learnwithBrainly

3 0
3 years ago
As part of a blood drive on campus for the American Red Cross, you and your friends have just donated 500 ml of blood. You are n
Lunna [17]

D) no change in cardiac output, increased heart rate, decreased stroke volume occurs after blood donation

Explanation:

When a person donates blood, there is a slight loss of blood volume or hypovolemia. This triggers the baroreceptors of the blood; although does not trigger the osmoreceptor.

The baroreceptor responses are according to the arterial pressure which rises momentarily and results in increased sympathetic activity with decreased vagal activity.

These changes will lead to vasoconstriction, reduced stroke volume, increased heart rate or tachycardia which helps to maintain the cardiac output.

The soreness at the venepuncture site on the skin is due to bruising which is common after any needleprick. applying cold pack, elevating and resting the arm.

In order to compensate for the fluid volume loss and avoid dehydration, one must take plenty of fluids before and after blood donation.

8 0
2 years ago
How can plants help reduce global warming they remove _____ from the air?
timurjin [86]
Plants leafs increasing carbon dioxide. it's remove dust air pollution
7 0
2 years ago
One of the more common mistakes in developing competency modeling is
galben [10]
<span>One of the more common mistakes in developing competency modeling is Simply making a list of positive attributes.

</span>A competency<span> framework defines the knowledge, skills, and attributes needed for people within an organization. </span>Positive attributes include honesty, happiness, respectfulness, discipline, and flexibility.


7 0
3 years ago
What class of organic compounds stores energy as fat
mestny [16]

Answer:

Lipids

Explanation:

Fats are in the class of organic compounds known as lipids. Lipids are organic molecules that can store energy as fat.

3 0
3 years ago
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