(Worth 10 points total) Let the linear transformation \(L:\mathbb{R}^2\rightarrow \mathbb{R}^2\) be defined by \(L\left(\begin{bmatrix} x_1\\x_2 \end{bmatrix}\right) = \begin{bmatrix}x_2 \\ 2x_2 + x_1\end{bmatrix}\)   Part A) Find the matrix representing \(L\) with respect to the standard basis \(\left\{\vec{e}_1 = \begin{bmatrix} 1\\0 \end{bmatrix},\vec{e}_2=\begin{bmatrix} 0\\1 \end{bmatrix} \right\}\) for \(\mathbb{R}^2\).   Part B) Find the matrix representing \(L\) with respect to the following basis for \(\mathbb{R}^2\) (for both the input and output vectors): \(\vec{v}_1 = \begin{bmatrix} 1\\-1 \end{bmatrix}\quad \quad \vec{v}_2 = \begin{bmatrix} 0\\2 \end{bmatrix}\) (If your final answer involves a matrix product, you may leave your answer as a product without actually multiplying them together.)   Write your final answers in the text box below. Your full work will be submitted to Gradescope as soon as you submit on Canvas.

The release of _____ ions from the sarcoplasmic reticulum is required for skeletal muscle contraction.

The symplast is the continuum of cytosol connected by

Which of the following can NOT explain why the study of the rhizosphere is critical to understanding plant nutrition?

Give the order in which antigen recognition by T cells occurs. (5points) Antigen fragments bind MHC. Antigen fragment in MHC is displayed on cell surface. MHC-peptide complex is transported to cell surface. Pathogen is taken in by, or infects, a host cell. Encounter with specific T-cell triggers immune response. Host cell enzymes make fragments from the antigen

The sodium-potassium pump in the plasma membrane of cells

According to the graph, B cells will first produce effector cells

Contrast and describe the effect the following conditions have on stomata, and provide an explanation for your choice: (10 points, 5pts each) Rising of the sun in the morning          vs.           Setting of the sun at night

The opening of stomata is thought to involve:

What shape is the earth?