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darwin hypothesized that there are definite steps to natural selection. consider the model of bacterial resistance to antibiotics. how would darwin explain step i?

a. bacteria adapt to environmental changes.

b. in any population, genetic variation exists.

c. in any population, some individuals are weaker than others.

d. some bacteria alter their dna in a response to environmental changes.

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.

How does upwelling affect coastal fisheries? upwelling damages nutrient supplies at coastal fisheries as the warm, nutrient-rich surface water is replaced by nutrient-poor, cold water. upwelling damages nutrient supplies at coastal fisheries as the cold, nutrient-rich surface water is replaced by nutrient-poor, warm water. upwelling improves the nutrient supply at coastal fisheries as the warm, nutrient-rich surface water replaces the nutrient-poor, cold water. upwelling improves the nutrient supply at coastal fisheries as cold, nutrient-rich water replaces the warm, nutrient-poor surface water.

What is the similarities and differences between bacteria and eukaryote?