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Which of these is a provisioning service people get from the ocean

In a cladogram, what occurs at a node? a derived trait appears. evolution is stopped. an ancestor dies. the cladogram ends. aa as s as ss what are the chances that their offspring will have sickle cell anemia? 0% 25% 50% 100%

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data.