Answer: B. It speeds up your heart rate to help you deal with danger.
Explanation: When you feel you are in danger, your heart rate goes up to get you ready to run, you pump out more adrenaline, and you are more alert. Also, all the other answers are just wrong. In A you would pay more attention, C is the opposite, and in D you would not need to hear when your body is resting.
I hope this helps!
In terms of biology, mutualism is a known form of symbiosis where both parties or organisms benefit from the relationship formed.
Atherosclerosis
Explanation:
Correct order of the sequence of events that leads to atherosclerosis is:
c, d, b, a
Development of atherosclerosis is caused by a high concentration of LDL‐cholesterol in the blood, and lowering the level of LDL‐cholesterol reverses atherosclerosis thus preventing cardiovascular disease
Cholesterol is the key component of arterial plaques which gave rise to the cholesterol hypothesis for the pathogenesis of atherosclerosis
Population studies have shown that elevated levels of both LDL cholesterol and apolipoprotein B (apoB) 100, which is the main structural protein of LDL, are directly associated with risk for atherosclerotic cardiovascular events
It would be 100 times greater if you are going from a pH of 5 to 7
Answer:
Option D. Car companies have developed hybrid cars.
Explanation:
Nowadays car companies have developed hybrid cars. In hybrid cars, the cars are moved by using electric energy instead of fossil fuels. Hybrid cars uses batteries which can be charged by electricity and this store electricity is used to run cars. These types of cars reduce carbondioxide emissions and decrease occurs in air pollution.
