Question Detail

ZOO 102 Geographic Distribution of Animal Life Objective Question
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Question

Why is it difficult for freshwater fish to colonize oceanic environments?
Options
A The lack of vegetation in the open ocean
B They are specifically adapted to particular habitat types
Correct Answer
C The presence of larger predators in saltwater
D Ocean currents move too fast for freshwater species
Correct Answer

Option B is the correct answer.

Detailed Explanation

The document notes that species adapted to particular habitats cannot easily colonize others, specifically citing freshwater fish being unable to live in the ocean. C is a plausible ecological pressure but B is the fundamental adaptive reason given.

Hint

It relates to habitat heterogeneity and the specific properties of water.

Question Info

Course: ZOO 102
Topic: Geographic Distribution of Animal Life
Type: Objective
Difficulty: Not specified
Question 247 of 737
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