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Explain how the human body is adapted for gas exchange

Gas exchange occurs in the lungs where oxygen enters from the air and diffuses into the blood stream and carbon dioxide in moves the opposite direction. Oxygen is needed for respiration by the body, for ...

LA
Answered by Louise A. • Biology tutor
5348 Views

What happens to the arteries in coronary heart disease?

The blood vessels supplying the heart (coronary arteries) become narrowed or blocked. This is caused by plaque buildup in the artery walls. These plaques are made up of fatty deposits (cholesterol). Plaqu...

SK
Answered by Shivam K. • Biology tutor
1801 Views

How would I approach a problem question on murder?

To tackle a problem question on the offence of murder, you should take it step-by-step and look closely at the facts. As with any criminal offence, both the actus reus (act) and mens rea

NG
Answered by Natasha G. • Law tutor
20263 Views

Explain and analyse two factors that can influence voting behaviour.

One factor that can influence voting behaviour is social class. Social class something each individual is in based on how much wealth they have, and ranges from working, middle and upper class. This facto...

MS
7168 Views

A ball is kicked off a cliff at a height of 20m above ground and an angle of 30 degree from the horizontal, it follows projectile motion and lands after a time t. Its velocity at the maximum height it reaches is 20m/s, how long does it take it to land?

This problem should be split into two parts, the time it takes the ball to reach its maximum point, and the time it takes it to fall to the ground from the maximum point.part 1) We can calculate the balls...

PK
Answered by Patryk k. • Physics tutor
2698 Views

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