When given an unknown bacterial sample the first step is to expand the current bacterial population. Which type of media best suites this need and Why

A. MSA agar

B. LB media

C. MacConkey agar

D. Columbia CNA agar

The correct answer among the given options is - LB media

Explanation:

The type of bacteria is unknown so can not be determined precisely what media should be best for such population however, on the given information the best media would be LB media for this population due to the fact that all other media forms that are selective will inhibit its growth and it is a nutrient-rich medium which favors the growth of bacteria.

Hence, the bacteria population should be placed in LB media for growth and after expanding its growth one should place in its selective media plate.

ok

explanation:

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.