3 years ago

Why does water flow upward in plant roots and stems?

Advanced Placement (AP)

1 answer:

Anettt [7]3 years ago

5 0

Because the stems suck up all the water to keep the plant hydrated and alive.

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What is the net primary productivity of an algal bed if the gross primary productivity in an algal bed is 7 kcal/m2/yr and respi

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$NPP = 4\ kcal/m^2/yr$

Explanation:

Given

$Gross\ Primary\ Productivity, GPP= 7\ kcal/m^2/yr$

$Respiration, R= 3\ kcal/m^2/yr$

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Determine the Net Primary Productivity (NPP)

NPP is calculated as follows;

$NPP = GPP - R$

Substitute values for GPP and R

$NPP = 7\ kcal/m^2/yr - 3\ kcal/m^2/yr$

$NPP = 4\ kcal/m^2/yr$

<em>Hence, the Net Primary Productivity is </em> $4\ kcal/m^2/yr$ <em></em>

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