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sdas [7]
3 years ago
8

How is friction harmful when riding a bike?

Biology
2 answers:
d1i1m1o1n [39]3 years ago
8 0
Friction is harmful, because if you fall off a bike and friction occurs, you could get scraped/burned BADLY, or if you go on too high of a speed, your tires could burn off due to friction.
I hope I helped! =D
SIZIF [17.4K]3 years ago
3 0
Friction helps stop a bike when you use the brakes, but it can be harmful by slowing your speed down, if you hit the brakes hard at the sudden moment, you could possibly tumble and or fall. It also causes heat, so if not used correctly, that can be an injury. If you were to fall from the sudden stop, you could possibly hit the ground which can cause a knee injury and or scrapes.
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Whats the oceans climate
igor_vitrenko [27]
An oceanic climate<span> (also known as marine, west coast and maritime) is the </span>climate<span> typical of west coasts in higher middle latitudes of continents, and generally features cool summers and cool (but not cold) winters, with a relatively narrow annual </span>temperature<span> range and few extremes of </span>temperature<span>.

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8 0
3 years ago
Which structure is at work when the body deals with reflex actions?
Ne4ueva [31]

Answer:

spinal cord

Explanation:

Reflex actions are the involuntary action of the body in response to a signal or stimulus. The reflex action of body is controlled by spinal cord.

Reflex arc acts as a neural pathways that transmit impulse to the brain via spinal cord. Sensory neurons pass through synapse in the spinal cord which activate spinal motor neuron to act immediately without any delay.

Immediate taking off hand from hot oven is an example of reflex action, which is regulated by spinal cord.  

Hence, the correct option is spinal cord.

 

5 0
3 years ago
Read 2 more answers
Which characteristic of living things does a virus lack?
Marizza181 [45]

Answer:

Viruses are not made of cells as a living thing is.

Explanation:

.

7 0
3 years ago
What is the definition of multi-cellular?
alexandr1967 [171]
An organism or part having or consisting of many cells.  
5 0
3 years ago
100 POINTS!!! WILL GIVE BRAINLIEST FOR CORRECT ANSWER!!!
cestrela7 [59]

Answer:

Firstly, when we exercise, or do some activity (in this case football), we use more energy than usual...

The reason some of her body systems work faster than normal, is to keep the body working and in the equilibrium, so that she won’t get tired too fast.

Related to circulation, her blood flow increases, since she needs more oxygen to reach the muscles faster, due to the exercise/activity (Lactic acid builds up, so more oxygen is required.)

Her breathing increases to take in more oxygen(O2), and give out more carbon dioxide(CO2).

Her body respires more(respiration), both aerobically(with oxygen), and anaerobically(without oxygen), lactic acid builds up due to anaerobic respiration.

(Here, energy is released from glucose to generate a substance called lactic acid. ... Therefore anaerobic respiration cannot be used for a prolonged period of time without having damaging effects on a cell.)

When she inhales (Oxygen), it goes to the lungs, to the alveoli ( Alveoli are tiny air sacs in your lungs that take up the oxygen you breathe in and keep your body going)

In the Alveoli, diffusion takes place, this is where oxygen is diffused into the blood, and carbon dioxide is diffused (taken into) into the lungs.

Then we exhale, which gives out the carbon dioxide(CO2), this happens really fast, we also breathe so fast, this process happens within seconds.

Red blood cells contain something called haemoglobin, this combines with oxygen To form oxyhaemoglobin, then when the red blood cell reaches the muscle, it gives the oxygen, converting oxyhaemoglobin back to  haemoglobin.

Heart: pumps blood faster (as I said before), to ensure oxygen gets distributed faster to where it’s needed

4 0
3 years ago
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