The crystal violet molecules are trapped in the peptidoglycan layer of bacteria. For Gram-positive with a large peptidoglycan layer, the crystal violet molecules don't get washed off easily by the ethyl alcohol decolorizer (as it does in gram-negative bacteria) after staining. This makes it is possible to view the structure of the gram-positive bacteria after gram staining.
Answer: Geographic distributions
Anatomical features
Explanation:
Taxonomy simply refers to the way that organisms are classified and named. Every organism is classified in a particular group which is made up of other organisms that have similar characteristics.
It should be noted that taxonomy, some of the traits that are used to classify species include the geographic distributions and the anatomical features.
I think it is a structure of:dim is light where the radial muscles of the iris contract
Circular muscles of the iris relax
Pupil dialates
More light enter the pupil
Answer:
Origin. 20 out of the 36 body plans originated in the Cambrian period, in the "Cambrian explosion", However, complete body plans of many phyla emerged much later, in the Palaeozoic or beyond.
