B. cause the bike is in the way of the cars path
Answer:
Left atrium
Explanation:
The four pulmonary veins return oxygenated blood to the left atrium.
The organelles and substances inside the organelles are smaller.
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.