g Consider a culture medium such as mannitol salt agar (MSA) on which only gram-positive organisms such as Staphylococcus sp. Colonies can grow due to an elevated NaCl level. A yellow halo surrounds some colonies on the medium, indicating they are able to ferment the mannitol sugar, decreasing the pH and changing the color of a pH indicator chemical. This type of medium would be referred to as:

Selective and differential medium

Explanation:

The type of medium described in the illustration would be referred to as a selective and differential medium.

There are basically 6 types of growth media for microbes based on the chemical composition of the medium;

Enrich media: media that are enriched by substances such as blood, egg, etc. E.g. blood agar.Basal media: media that can be used to culture organisms without the addition of any substance. E.g nutrient agar.Selective media: media that selectively favors the growth of one organism or a group of organisms over the others due to its contents. E.g. Mannitol Salt Agar, McConkey agar, etc.Differential media: media that has the potential to change color with respect to a particular organism. E.g Mannitol salt agar.Transport media: media that are used to transport organisms due to the fact that they cannot be cultured where they are collected. E.g Stuart mediumStorage media: media used to store organisms for future uses. E.g saline medium

Mannitol salt agar has the capacity to favor the growth of a particular organism by indicating a color change. Hence, it is referred to as a selective and deferential medium.

The virus is considered to be are living item since they have hereditary material dnas or rnas. they can imitate and change. they respond to boosts, for example, radiation, chemicals, and warmth. they have antigenic properties. they are proficient to duplicate with a same hereditary constituent.