Mariana eats an orange. Which statement describes the ultimate source of the energy that her body receives when she digests the orange?

Which of the following is directly affected by the cardiovascular system?

Aprimary producer stores 9,000 kcal. in the energy pyramid, if a primary producer is consumed by a first-level consumer, and that first-level consumer is consumed by a second-level consumer and the second-level consumer is consumed by a third-level consumer, how much energy is stored by the third-level consumer from the primary producer? *

The gulf stream and north atlantic current modify the climate of northwestern europe by making the climatea) warmer and drierb) warmer and more humidc) cooler and drierd) cooler and more humid