What is gene expression?
A. The manner in which phenotypes differ from genotypes
B. The control of when and where proteins are made
C. The number of proteins an organism can produce
D. The total number of genes a person has

B. The control of when and where proteins are made

Explanation:

It acts as both and on/off switch to control when proteins are made and also a volume control that increases or decreases the amount of proteins made.

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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.