Comparative Cell Biology — What fundamental cellular features do an elephant (animal cell) and an oak tree (plant cell) share?

Introduction:
The goal is to identify common eukaryotic traits shared by animal and plant cells. Despite obvious differences (cell wall, chloroplasts, vacuoles), both lineages retain hallmark eukaryotic features.

Given Data / Assumptions:

• Elephant cells are animal eukaryotic cells.
• Oak tree cells are plant eukaryotic cells.
• Eukaryotes have a nucleus and membrane-bound organelles.
• Both animals and plants possess mitochondria for aerobic respiration.

Concept / Approach:
Check each statement for general eukaryotic validity. If all are true, the inclusive option becomes correct.

Step-by-Step Solution:

Verification / Alternative check:
Plant cells contain mitochondria in addition to chloroplasts; chloroplast presence does not negate mitochondrial presence.

Why Other Options Are Wrong:

Common Pitfalls:
Assuming plants use only chloroplasts for energy and lack mitochondria; forgetting that 'eukaryote' already implies a nucleus.

Final Answer:
All of the above.