Answer:
because when you do it on accident it is unintentional and scares you because you werent expecting it. but when you do it on purpose it wont hurt because your brain stops you from doing it so hard that it hurts lol
Explanation:
I am going to have to say algae and fungus.
Hope this helps, if not, comment below please!!!
Answer:
Asthma-dust , Lung cancer- smoking, Pneumonia- coldness
Explanation:mark me brainliest please
<span>Protocooperation is where two species interact with each other beneficially; they have no need to interact with each other.</span>
The answer is A, Viruses
Viruses cannot reproduce on their own , so they have to inject their DNA or RNA into the nucleuus of a cell. By doing this, the virus will take over that cells and within times, that cells will pop up and producing more viruses.
This reproduced virus will repeat the same process until our immune systems stop them
