A piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces.
Answer:
B. An idea supported by evidence.
Answer:
Gram-negative bacteria
Explanation:
When the bacteria took pink color (safranine), it means they are gram-negative bacteria. Gram-negative bacteria have thick cell walls it does not take crystal violet stain as its cell wall is thicked. It take-up counterstain safranine and seen pink in the microscope.