Question

how might species richness vary between areas with strong currents and areas with calm water?
true or false: clarity and ph are biotic factors.
□ true □ false
how does water velocity affect life in a river or stream?

Explanation:

1. Areas with strong currents may have higher species richness due to better oxygen - nutrient mixing, but can also be more challenging habitats. Calm water areas may have more sedentary species. However, they can also be more stable and support certain specialized species.
2. Clarity and pH are abiotic factors as they are non - living components of the environment. Biotic factors are living organisms.
3. Higher water velocity can increase oxygen availability, transport nutrients and dislodge organisms. Lower velocity can create areas of sediment deposition and slower - moving water species habitats.

Answer:

1. Species richness differences are complex and depend on multiple factors. Strong currents can both increase and decrease richness compared to calm water areas.
2. False
3. Higher velocity can increase oxygen and transport but also dislodge; lower velocity creates different habitats.