What is the purpose of the cardiovascular system

Answers

Answer 1

Answer: I believe that the cardiovascular system help in release of blood throughout the body :3

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1. Which of the following best states a theme of Romeo and Juliet?(A) Love paves the way for peace (B) The power of nature overcomes the will of man (C) Love is a gentle force that brings families together (D) Actions in haste can bring about destruction 2. In Act IV, Scene 5 of Romeo and Juliet, when Friar Lawrence enters, he says, "Come, is the bride ready to go to church?" Why is this line dramatically ironic? (A) He is late for the wedding service. (B) He knows that Juliet has fallen into a deep sleep that resembles death. (C) He knows that Juliet is already at the church.
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A driver over the age of 21 whose blood alcohol concentration is over 0.08 should be charged with a _____.

What do all organisms need? Select three options.

Answers

Answer:

food water a place to live

Explanation:

food, water, and protection. A plant is left in a protected greenhouse that pumps in fresh carbon dioxide. The plant also has access to sunlight and can make its own sugar. However, the plant is beginning to die.

Answer:

what are the options?

Explanation:

Which best describes the negative impact of human water use? A. Food can be produced in dry areas. B. Increased runoff carries fertilizers. C. Food can be produced through drought years. D. Water can improve the livelihood of farmers.

Answers

Answer is B. Increased runoff carries fertilizers.

Runoff is movement of water over land as surface water instead of being absorbed into groundwater or evaporating. Runoff is that part of the precipitation, irrigation water that appears in uncontrolled surface streams, rivers, drains, or sewers. When runoff flows along the ground, it carries soil contaminants such as fertilizers, pesticides to other parts of land that become discharge or overland flow.

In the 1950s, what discovery revolutionized biotechnology?cloning sheep
using electrons for microscopes
splicing genes
molecular structure of DNA

Answers

it was molecular structure of DNA this was appeared 1n April 1953 Watson and Crick presented the structure of DNA- Helix.it carried the genetic information. the DNA Molecule shaped in twisted ladder.franklin produced an X- ray photograph. DNA structure is made of molecules called nucleotide. Watson and crick also work on 3-D structure of DNA. this mark the history in molecular biology to understanding the genes control and genetic information.they also work on cell.they use stick and ball to understand to test their idea.

Which of the following organic compounds is the main source of energy for living things?a.carbohydratesc.nucleic acidsb.lipidsd.proteins

Answers

Well, carbohydrates burn and release energy. Nucleic acids give identity (like DNA, RNA). Lipids also give energy, but it's more difficult (they must be first turned into carbohydrates first). Proteins are building blocks for the cells.
Now, knowing all of this should make it easy to choose the correct answer :)

Answer:

Carbohydrates

Explanation:

Which best describes the blood flowing in an artery?a. It contains no red blood cells.
b. It is oxygen poor.
c. It moves away from the heart.
d. It contains no white blood cells.

Answers

C. It moves away from the heart

Arteries carry blood away from the heart, while veins carry blood to the heart.

Answer:

The correct answer is c. It moves away from the heart.

Explanation:

An artery is a hollow blood vessels that carry blood into it from the heart to other parts of the body so the artery moves away from the heart. Arteries normally carry oxygenated blood to the organs and tissues and they are the part of the circulatory system.

As arteries carry blood so it also plays an important role in delivering nutrients and removal of waste products like carbon dioxide. Therefore it also helps in maintaining the pH of the blood. Arteries are also important in the circulation of immune cells in the body through blood.

Therefore the correct answer is c. It moves away from the heart.

A population of squirrels lived together in a forest. An event occurred that caused the population to diverge into two different species over a long period of time. Which of the following is most likely the event that occurred?

Answers

There are no choices given, but the event was most likely a physical one that would have barred the squirrels from seeing each other. Squirrels are a social creature, and the event that would have separated the populace could have been anything from a large fire to an earthquake that separated the squirrels from each other.

Answer:

Explanation:

A natural disaster occurred that separated squirrels.

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