<h2><u>Answer:</u></h2>
The correct option is A ( Technology has advanced and improved over time.)
<h3><u>Explanation: </u></h3>
Advancement is advancing and associations over the entire world are feeling the impacts whether it's sure or negative. Anyway, the advances of development have positively affected the matter of master games.
Everything running from minute replays to tweeting your most adored capable contender, development passes on individuals a great deal closer to the delight than whenever in ongoing memory.
Advances in development have even made it functional for an individual actually side of the world to watch a specialist wearing event continuously that is happening in another country, globalizing sports.
The goal of vaccines is to greatly reduce the complications caused by childhood diseases. Although some diseases might be good for us to catch and leave us stronger, others cause more harm than good and leave us weaker. Vaccines prepare our bodies to fight against harmful diseases that we are likely to encounter in the world.
To understand how vaccines work, imagine that your immune system is a dictionary. For every substance that your body encounters, the immune system records a definition and an action. The definition is the description of the substance. The action tells the body what to do with the substance, like absorb it or attack it.
But, before your body knows what to do with something, it must identify the substance first. The way your body identifies something is based on the shapes found on the surface of that thing. These shapes are called antigens—physical characteristics of an object that the immune system can recognize. Vaccines help your body identify what infections look like so that the immune system can use its natural defenses to treat them.
For example, imagine a child eating a strawberry. It is important that the immune system has identified the strawberry as food and absorbs it. Now imagine a child who catches a cold. It is important that the immune system has identified the cold as harmful and attacks it. Vaccines don’t change how your body acts when it encounters something; they just help your body identify what it encountered.
<h2><u>
Vaccines teach our immune systems to fight diseases that otherwise would take them too long to recognize as harmful.</u></h2>
It is a good idea because it helps to detect if there is too much carbon monoxide in the house. If there is too much, it can be poisonous and the detector will let you know. this answer would be TO AVOID POISONING BY A BUILDUP OF CO GAS.
btw, is this platoweb? just curious.
There are three classes of Lever:
1) First Class of Lever: In this, Fulcrum is a<span>lways changes the direction of the input force and can be used to increase the force or the distance
</span><span>
2) Second Class of Lever: In this, Fulcrum d</span><span>oes not change direction of the input force & Output force is greater than the input force.
3) Third Class of Lever: In this, t</span><span>he input force is between the fulcrum and the load does not change the direction of the input force. Here, Output force is less than input force.
Hope this helps!</span>
<span>Three benefits of exercise to the cardiovascular system are strengthening of the heart, improvement of the ability of the cardiovascular system to deliver oxygen to the muscles, and an increase in the number and size of mitochondria. Three benefits to the respiratory system are strengthening of the respiratory muscles, more surface areas to the lungs, and improves the ability of the blood to load and unload oxygen. Three benefits to the skeletal system are the bones become more dense, preventing osteoporosis, prevents bone loss in later years, and helps with good posture. Three benefits to the muscular system are improvement in strength, energy, and flexibility. </span>
