ticks fleas bites scabs

I recently got a puppy from a friend German Shepherd/bully mix.. Today I was cuddling with her in bed and noticed she had black spots on her belly.. I panicked and gave her a bath thinking they were fleas but they didn't wash away.. I attached a photo because I just want answers.

Hi I'm hoping someone can help...my shorkie has developed several (5) scabs around his bum / tail. I am presuming that these are bites but have treated him for ticks and fleas and he still has the scabs and I'm beginning to worry that they might be something else? Can anyone tell me if they...