A virus's ability to infect an animal cell depends primarily upon the "<span>presence of receptor sites on the cell membrane"
Hope this helps!</span>
I may be wrong but I think it’s the second one. They speed up reactions, and there’s a certain enzyme for a certain reaction.
Room temperature..type of plant..too much sunlight..too much water..or food..thats all i got.
Science can help people in their economic live as consumer
