Heat detection is needed for breeding.There is a system called timed breeding or the appointment breeding which is made so that the onset of heat and ovulation are induced for an animal to be inseminated at the right time. These then will help the breeder as well as the owner.
It is b because of all the cells that produce the chemical bond
i'm too lazy to write that down for you but i can help you with a few points. Those are(i am relating this case to smoking):
>delicate lining of the lungs is damaged.
>cilia in the lining is damaged.
>since,cilia number is low, the lungs do not get cleaned often.
> spasms in the bronchi of the lungs, causing difficulty breathing.
>damaged lungs being much harder and more brittle.
Since they can go back to they're original form after a reaction that's why it's reusable
<span>An element is a substance that cannot be broken into other substances further.An element is composed of one type of atoms all over. Like a molecule can be divided into atoms further. For example, Water is a molecule which is made up of Oxygen (O), Hydrogen (H). Here, Oxygen and Hydrogen are elements and cannot be further broken down into other substances.</span><span />
