Which of the following habitats has a water level that changes with the tide? • abyssal zone
• Sublittoral zone
• deep oceanic layer
• Salt marsh

Which organelle releases chemicals that break down large food particles into smaller ones?

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

Which part of cellular respiration must occur before any of the other steps can occur