Describe the significance of physical properties of water to organism.
- Water has low viscosity; this allows for easy flow of water and easy transport of aquatic organisms
- Water is transparent; this allows penetration of light for photosynthesis and visibility
- Water has high surface tension that allows movement of animals on the surface of water and ascending of water through the xylem.
- Water has high latent heat of vaporization; this allows cooling of organisms when sweat evaporates. It also prevents drying aquatic habitat during hot climate
- Water has high latent heat of fusion; this prevent freezing of aquatic habitat during cold climate
- Water has high specific heat capacity which prevent temperature rise or fall in an organism during hot or cold weather respectively
- Water molecules have adhesive and cohesive forces; these create enough capillarity force for transport I narrow tubes of biological systems..
- Water is a good solvent; it enables biological reactions and transport
- Water is incompressible hence it is used in hydrostatic skeleton in lower animals such as earthworms.
CATEGORIES Bio Questions and answers
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