Identifying the roles of Proteins
Each category represents one of the functions of proteins. Match each example with the appropriate function.
Insulin controls the concentration of sugar
regulating chemical reactions
in the blood.
I
fighting disease
Pepsin works in the stomach to speed up
the breakdown of food
maintaining homeostasis
IgA prevents the buildup of viruses and
bacteria in the gut.
providing structure
Collagen makes skin strong yet flexible.
) Intro
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trachea, alveoli, lung capillaries, arteries

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.