Question

which of the following is a key factor in determining the distribution of marine life in different ocean zones? seabed color seabed age boat vicinity light penetration

Explanation:

To determine the key factor for marine life distribution in ocean zones, we analyze each option:

• Seabed color: Irrelevant to marine life distribution as color doesn't impact survival/habitat needs.
• Seabed age: Not a direct factor for most marine organisms' distribution.
• Boat vicinity: Human - made and localized, not a key ecological factor for broad ocean zone distribution.
• Light penetration: Critical. Photosynthetic organisms need light, and light availability defines zones (e.g., photic, aphotic), influencing food chains and species distribution.

Answer:

light penetration