What are two activities that might increase your rate of respiration?

Explanation:

walking

running. As your body is in motion, your oxygen needs are greater. The faster the heartbeat, the more O2 is needed for muscle movement.

That is if your speaking of activity and not cellular respiration...???

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls