Question

which statements describe how population variation provides a survival advantage in aquatic species? select two answers. an octopus lays 100,000 eggs before she dies. salmon must return to their spawning grounds to reproduce. some seals can dive deeper than others to obtain fish for food. some coral expel their food source when temperatures become warmer. certain fish can tolerate a wide range of ocean temperatures.

Explanation:

1. For "Some seals can dive deeper than others to obtain fish for food": Variation in diving ability means some seals have an advantage in accessing food, helping them survive and reproduce.
2. For "Certain fish can tolerate a wide range of ocean temperatures": A wider temperature tolerance allows these fish to survive in more environments, giving a survival advantage.

• "An octopus laying many eggs" is about reproductive strategy (quantity) not variation for survival advantage.
• "Salmon returning to spawning grounds" is a reproductive behavior, not variation.
• "Some coral expelling food source in warm temps" is a negative response, not an advantage from variation.

Answer:

C. Some seals can dive deeper than others to obtain fish for food
E. Certain fish can tolerate a wide range of ocean temperatures