Load Balancer Vs API gateway

I am little confused between API gateway and server Load balancer

  1. While sketching the architectural diagram : If i am already sketching API gateway do i also need to show load balancer , if yes should it be placed between client and API gateway or between API gateway and services server.

  2. Can API gateways (reverse proxy) act as load balancers and eliminate the need to add load balancer on top of API gateway