What do mucus, saliva, and tears have in common? a. they contain chemicals that attack pathogens b they contain vaccines against pathogens c. they are made of lymph d. they contain only water

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to

What is the period of cell life when it is conducting

3differences between bacteria and other 2 cells