Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus.
Stride is the complete communication solution that empowers teams to talk less and do more. It's everything teams need to stay connected but keep moving. Stride is a new kind of messaging that: Turns conversations into action with integrated collaboration tools; Brings all the right people together instantly with built-in voice and video conferencing
Payflow is a payment gateway to process cards. Pretty much same as authorize.net, braintree, stripe, wepay, etc.. The receivers of the payments are typically called merchants and they all need an account - either an IMA (internet merchant account) from a bank or a merchant account from the gateway provider.