yes
yes
Yes. If you can visually see the components of the mixture (in this case, tortilla, black beans, cheese, etc.) then the mixture is heterogeneous. (The prefix "hetero-" means different, as in you can see the different parts with the unaided eye.)
This mixture is not homogeneous.
homogeneous
Gelatin is a homogeneous mixture.
The mixture of water and salt is a homogeneous mixture. This is an example using the phrase homogeneous mixture.
Homogeneous mixture-uniform mixture of the element
Air is a homogeneous mixture.
Air is a homogeneous mixture.
A popsickle is a homogeneous mixture.
It is a homogeneous mixture.
A homogeneous mixture is monophasic.