Different types of tissues have different shapes and parts to do different jobs. 1. Name one type of tissue. 2. Describe its job 3. Tell how its shape or parts help it do that job.

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.