An increased cardiac output will provide more oxygen and more glucose to the working muscles. Explain how this helps the athlete during exercise.

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

The hematodinium parasite becomes less of a problem for the blue crab when the crab is very young. fishing is thriving in the region. the crab moves to less salty water. a significant percentage of the population is impacted.