Brown thing under my tongue? What could this be?

What type of specimens where you able to see under each of the microscopes in the microscope activity

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions