Questions: A scientist found two cones ( A and B in the photograph below) of the genus Pinus and did the longitudinal sections seen in C and D on the cones found. Please refer to the photograph below to answer the following questions (1 to 3). 6. Which structures are representative of a megastrobilus? A. A and B B. B and D C. A and D D. B and C E. A and C 7. Which structures are representative of a Microstrobilus? A. A and B B. B and D C. A and D D. B and C E. A and C 8. Where would you most likely find a pollen grain? A. At position marked X B. At position marked Y C. At both positions X and Y D. Not enough information is given.

A scientist found two cones ( A and B in the photograph below) of the genus Pinus and did the longitudinal sections seen in C and D on the cones found. Please refer to the photograph below to answer the following questions (1 to 3).
6. Which structures are representative of a megastrobilus?
A. A and B
B. B and D
C. A and D
D. B and C
E. A and C
7. Which structures are representative of a Microstrobilus?
A. A and B
B. B and D
C. A and D
D. B and C
E. A and C
8. Where would you most likely find a pollen grain?
A. At position marked X
B. At position marked Y
C. At both positions X and Y
D. Not enough information is given.

Transcript text: A scientist found two cones ( A and B in photograph below) of the genus Pinus and did the longitudinal sections seen in C and D on the cones found. Please refer to the photograph below to answer the following questions (1 to 3 ). 6. Which structures are representative of a megastrobilus? A. A and B B. B and D C. A and D D. B and C E. A and C 7. Which structures are representative of a Microstrobilus? A. A and B B. B and D C. A and D D. $\quad B$ and $C$ E. A and C 8. Where would you most likely find a pollen grain? A. At position marked $X$ B. At position marked $Y$ C. At both positions $X$ and $Y$ D. Not enough information is given.

Solution

Solution Steps

Step 1: Identify Megastrobilus Structures

Question 6 asks which structures are representative of a megastrobilus.
A megastrobilus is a female cone, typically larger and more complex than a microstrobilus.
In the images, structure B (a large, woody cone) and structure D (a longitudinal section showing ovules) are indicative of a megastrobilus.

Final Answer

6. B and D

Step 2: Identify Microstrobilus Structures

Question 7 asks which structures are representative of a microstrobilus.
A microstrobilus is a male cone, usually smaller and producing pollen.
In the images, structure A (a smaller, pollen-producing cone) and structure C (a longitudinal section showing pollen sacs) are indicative of a microstrobilus.

Final Answer

7. A and C

Step 3: Locate Pollen Grain

Question 8 asks where you would most likely find a pollen grain.
Pollen grains are produced in the microstrobilus, specifically in the pollen sacs.
In the images, position X in structure C (showing pollen sacs) is where pollen grains would be found.

Final Answer

8. At position marked X

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