Perform the Indicated Operation A) $\left[ \begin{array} { r r } 1 & 2 \\ 7 & 0 \\ 3 & - 2 \end{array} \right]$

question 83

Multiple Choice

Perform the indicated operation.
- $$\left[ \begin{array} { r r } - 1 & 3 \\0 & 4 \\7 & - 4\end{array} \right] - \left[ \begin{array} { l l } 2 & 1 \\7 & 4 \\4 & 2\end{array} \right]$$

• A) \(\left[ \begin{array} { r r } 1 & 2 \\ 7 & 0 \\ 3 & - 2 \end{array} \right]\)
• B) \(\left[ \begin{array} { r r } 3 & - 2 \\ 7 & 0 \\ - 3 & 6 \end{array} \right]\)
• C) \(\left[ \begin{array} { r r } 1 & 4 \\ 7 & 8 \\ 11 & 0 \end{array} \right]\)
• D) \(\left[ \begin{array} { r r } - 3 & 2 \\ - 7 & 0 \\ 3 & - 6 \end{array} \right]\)

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Definitions:

Decomposers

Organisms such as fungi and bacteria that break down dead organic material, returning nutrients to the ecosystem.

Biomass Pyramid

A graphical representation showing the relative amount of living organic matter available at each trophic level in an ecosystem.

Anaerobic Respiration

A process by which organisms produce energy without the use of oxygen.

Pyramid of Biomass

A graphical representation showing the total mass of living organisms at each trophic level in an ecosystem.