Copy the table below into your workbook. Complete the table by filling in the blocks if the feature applies to the organism. In the blocks, describe in what way or ways each organism's gas exchange organs meet the requirements for efficient gas exchange. Supply a suitable heading for the table.

[tex]\[
(1)+(28)
\][/tex]

\begin{tabular}{|c|c|c|c|c|c|c|c|}
\hline
\multirow{2}{}{Organism} & \multirow{2}{}{\begin{tabular}{c}
Gas \\
exchange \\
organ
\end{tabular}} & \multicolumn{6}{|c|}{Requirements of an efficient gas exchange surface} \\
\cline{3-8}
& & \begin{tabular}{c}
Large \\
surface \\
area
\end{tabular} & Thin & \begin{tabular}{c}
Permeable \\
and moist
\end{tabular} & \begin{tabular}{c}
Well \\
ventilated
\end{tabular} & \begin{tabular}{c}
Transport \\
system
\end{tabular} & Protected \\
\hline
Earthworm & & & & & & & \\
\hline
Insect & & & & & & & \\
\hline
Fish & & & & & & & \\
\hline
\begin{tabular}{c}
Dicotyledonous \\
plant
\end{tabular} & & & & & & & \\
\hline
\end{tabular}



Answer :

The result of the operation [tex]\(1 + 28\)[/tex] is:

29

Given this result, let's craft a detailed, step-by-step solution for your question. Here's how you can set up and complete the table with a suitable heading, followed by descriptions for how each organism's gas exchange organs meet the requirements for efficient gas exchange:

### Heading: Requirements for Efficient Gas Exchange in Various Organisms

| Organism | Gas Exchange Organ | Large Surface Area | Thin | Permeable and Moist | Well Ventilated | Transport System | Protected |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Earthworm | Skin | Yes, the skin has a large surface area relative to the volume of the organism. | Yes, the skin is thin facilitating diffusion. | Yes, the skin secretes mucus, keeping it moist and permeable. | No, earthworms rely on their environment to be moist. | Yes, blood capillaries under the skin transport gases. | Yes, living in soil helps protect the skin. |
| Insect | Tracheal System (tracheae and spiracles) | Yes, the tracheal system is extensive, providing a large surface area. | Yes, tracheoles are thin-walled. | Yes, the tips of tracheoles are moist, allowing gas exchange. | Yes, movement of the insect ventilates the tracheal system. | No, gases are directly transported without a circulatory system. | Yes, spiracles can close to prevent water loss and entry of particles. |
| Fish | Gills | Yes, gill filaments and lamellae provide a large surface area. | Yes, gill membranes are very thin. | Yes, water passing over the gills keeps them moist. | Yes, water is continuously moved over the gills. | Yes, a circulatory system transports gases to/from cells. | Yes, gill covers protect the delicate gills. |
| Dicotyledonous Plant (indicating leaf structures) | Leaves | Yes, leaves have a large surface area provided by many cells and air spaces. | Yes, mesophyll cells are thin. | Yes, the cell walls are permeable and surfaces are moist for gas exchange. | No, but stomata on leaves open and close. | No, gases diffuse into cells directly. | Yes, the cuticle and wax layers protect leaf surfaces. |

This table is now filled with appropriate information that explains how each organism’s gas exchange organs meet the requirements for efficient gas exchange.