If Katy Perry tweets a close-up of her eyelashes, lengthened by using a Cover Girl mascara product, then Cover Girl will have instantly reached all her millions of followers. What effect of social media engagement is this an example of?

Networking effect

Explanation:

If Katy Perry tweets a close-up of her eyelashes, lengthened by using a Cover Girl mascara product, then Cover Girl will have instantly reached all her millions of followers. What effect of social media engagement is this an example of network effect.

i have to go with a for this one

the branch of biology that deals with the normal functions of living organisms and their parts.

the way in which a living organism or bodily part functions.