They happen in the early fall
C. Energy from producers flows into multiple levels of consumers
Plants give the lesser animals in the food chain their energy, those same lesser animals will get consumed by the predators, which will give the predator some of the energy that the producer/plant gave to the eaten animal. It won’t be the same as eating it first hand, but it’s still being given to the predator
That would be B.
During ventricular systole both atria relax while the 2 ventricles contract and send blood into the arteries.
The rest of choices are wrong,
The atria contract at the same time.
All 4 chambers never contract or are in systole at the same time.
I'd say yes is the answer
C. Controls the passage of chyme from the stomach into the small intestine