Detailed illustration of eukaryotic cell components and their functions.

Let's solve this step-by-step by identifying and labeling the parts of a simple leaf based on the diagram and the word box provided.

Step 1: Understand the Word Box

The Word Box provides the following terms:
- Leaf base
- Axil
- Stem
- Petiole
- Tip
- Vein
- Leaf-blade
- Margin
- Midrib

We need to match these terms to the labeled parts of the leaf in the image.

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Step 2: Analyze the Diagram

Here’s how the parts are typically arranged in a simple leaf:

1. Leaf-blade (or Lamina) – The broad, flat part of the leaf where photosynthesis occurs.
2. Petiole – The stalk that attaches the leaf blade to the stem.
3. Leaf base – The part of the leaf where it connects to the stem (often at the bottom of the petiole).
4. Midrib – The central vein running through the middle of the leaf blade.
5. Veins – The network of vascular tissues in the leaf (smaller branches off the midrib).
6. Margin – The edge of the leaf blade.
7. Tip – The end of the leaf blade (the topmost point).
8. Axil – The angle between the petiole and the stem (where a bud may form).
9. Stem – The main support structure of the plant; the part above which the leaf is attached.

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Step 3: Match Labels to Arrows

Now, let’s go through each blank and assign the correct term:

1. Top right arrow pointing to the tip of the leaf → Tip
2. Arrow pointing to the side edge of the leaf → Margin
3. Arrow pointing to the central vein → Midrib
4. Arrow pointing to the small veins branching from the midrib → Vein
5. Arrow pointing to the broad green part of the leaf → Leaf-blade
6. Arrow pointing to the stalk connecting the leaf to the stem → Petiole
7. Arrow pointing to the base of the petiole where it joins the stem → Leaf base
8. Arrow pointing to the angle between the petiole and stem → Axil
9. Arrow pointing to the brown vertical structure below the leaf → Stem

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Final Answer:

From top to bottom (left column first, then right):

- Top left blank: Leaf base
- Second blank (left): Petiole
- Third blank (left): Leaf-blade
- Fourth blank (left): Midrib
- Fifth blank (left): Vein
- Sixth blank (left): Margin
- Seventh blank (left): Tip
- Right side blank (top): Axil
- Bottom right blank: Stem

Wait — let’s double-check the number of blanks.

Looking at the image:
- There are 6 blanks on the left, one on the right near the top, and one on the bottom right.
- That’s 8 total blanks.

Let’s reassign carefully based on typical diagram layout:

#### Left Column (from top to bottom):
1. Arrow pointing to leaf base → Leaf base
2. Arrow pointing to petiole → Petiole
3. Arrow pointing to leaf-blade → Leaf-blade
4. Arrow pointing to midrib → Midrib
5. Arrow pointing to vein → Vein
6. Arrow pointing to margin → Margin

#### Right Side:
- Arrow pointing to tip → Tip
- Arrow pointing to axil → Axil
- Arrow pointing to stem → Stem

But there are only two arrows on the right: one near the top (pointing to the axil), and one at the bottom (pointing to the stem).

Wait — actually, looking again:

- One arrow points to the tip of the leaf (top right)
- One arrow points to the axil (angle between petiole and stem)
- One arrow points to the stem (below the leaf)

So we have:

Correct Labeling:

1. Top right arrow (to tip) → Tip
2. Middle right arrow (to axil) → Axil
3. Bottom right arrow (to stem) → Stem

Now for the left column (six blanks):

- First blank (top left): points to leaf base → Leaf base
- Second: points to petiole → Petiole
- Third: points to leaf-blade → Leaf-blade
- Fourth: points to midrib → Midrib
- Fifth: points to vein → Vein
- Sixth: points to margin → Margin

✔ All eight labels used.

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✔ Final Answer (Labeling):

| Blank Position | Label |
|----------------|---------------|
| Top left | Leaf base |
| Second left | Petiole |
| Third left | Leaf-blade |
| Fourth left | Midrib |
| Fifth left | Vein |
| Sixth left | Margin |
| Top right | Tip |
| Middle right | Axil |
| Bottom right | Stem |

> Note: The "Word Box" has nine words, but only eight blanks. So one word will be unused. Let's check:
> Words: Leaf base, Axil, Stem, Petiole, Tip, Vein, Leaf-blade, Margin, Midrib → 9 words
> But we have 8 blanks.

Wait! Actually, counting the blanks:

- 6 on the left
- 1 on the right (middle) → axil
- 1 on the right (bottom) → stem
- 1 on the top right → tip

That’s 8 blanks.

But the word box has 9 words. So one word is extra.

Wait — no, actually:

- Word Box:
- Leaf base
- Axil
- Stem
- Petiole
- Tip
- Vein
- Leaf-blade
- Margin
- Midrib

→ 9 words

But we only need 8 labels.

Let’s recount the blanks:

- Left column: 6 blanks
- Right side: 2 blanks (one near the axil, one at the stem)
- And one more on the top right, pointing to the tip

So total 8 blanks.

Yes.

But the diagram shows 8 lines/labels, so we use 8 of the 9 words.

Wait — actually, the word box has 9 words, but only 8 blanks.

So one word is not used.

Let’s see: all parts are covered except possibly “Leaf-blade” and “Midrib” might be overlapping?

No — they’re different.

Wait — perhaps “Leaf-blade” and “Blade” are the same? But it's listed as Leaf-blade.

But in the diagram, the large green area is the leaf blade.

And the central vein is the midrib.

All seem necessary.

Wait — maybe the "Leaf base" is the same as "base"?

But it's listed separately.

Actually, upon close inspection, the label for the leaf base is often not always shown, but here it is.

Wait — perhaps "Axil" is the only one that might be tricky.

But yes, the axil is the angle between the petiole and the stem, and it’s clearly marked.

So all 8 blanks are accounted for.

But the word box has 9 words, so one is redundant.

Let’s list the correct labels for the 8 blanks:

1. Top left → Leaf base
2. Second left → Petiole
3. Third left → Leaf-blade
4. Fourth left → Midrib
5. Fifth left → Vein
6. Sixth left → Margin
7. Top right → Tip
8. Middle right → Axil
9. Bottom right → Stem

Wait — that’s 9!

But the diagram has only 8 blanks.

Let me count again.

Looking at the image:

- On the left, there are 6 ovals vertically aligned.
- On the right, there are:
- One oval above the leaf (pointing to the tip)
- One oval at the axil (angle)
- One oval at the bottom (pointing to the stem)

So 3 on the right, plus 6 on the left = 9 blanks?

Wait — no.

Look closely:

- Left column: 6 ovals (from top to bottom)
- Right side: two ovals — one near the top (pointing to tip), and one at the bottom (pointing to stem)
- But there’s also an oval at the axil — that’s three on the right

Wait — actually:

There are 6 on the left, and 3 on the right? No.

Looking at standard versions of this worksheet:

Typically:

- 6 on the left
- 1 on the right (for axil)
- 1 on the right (for stem)
- 1 on the top right (for tip)

But in your image, it appears:

- 6 on the left
- 1 on the top right (tip)
- 1 on the side (axil)
- 1 on the bottom (stem)

So 9 blanks?

But the word box has 9 words.

Yes! So all 9 are used.

Wait — let's count:

1. Left 1: ?
2. Left 2: ?
3. Left 3: ?
4. Left 4: ?
5. Left 5: ?
6. Left 6: ?
7. Top right: ?
8. Middle right: ?
9. Bottom right: ?

Yes — 9 blanks.

So all 9 words are used.

Now, let’s assign:

Final Correct Labeling:

1. Left 1 (top) → Leaf base (where petiole meets stem)
2. Left 2 → Petiole (stalk)
3. Left 3 → Leaf-blade (main green part)
4. Left 4 → Midrib (central vein)
5. Left 5 → Vein (branching veins)
6. Left 6 → Margin (edge of leaf)
7. Top right → Tip (end of leaf)
8. Middle right (axil) → Axil (angle between petiole and stem)
9. Bottom right → Stem (the brown structure)

✔ All 9 words used correctly.

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✔ Final Answer:

Label the Parts of a Simple Leaf:

- Left Column (top to bottom):
1. Leaf base
2. Petiole
3. Leaf-blade
4. Midrib
5. Vein
6. Margin

- Right Column:
- Top right: Tip
- Middle right: Axil
- Bottom right: Stem

This completes the labeling of all parts of a simple leaf using the given word box.