Answer:
The left and right atrium
Explanation:
The heart has four chambers: two atria and two ventricles.
The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle.
The right ventricle pumps the oxygen-poor blood to the lungs.
The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle.
The left ventricle pumps the oxygen-rich blood to the body.
We need 'the following' to help you.
The right answer is: an elderly person.
Food poisoning makes people sick at any age, but among seniors, whose immune systems are more vulnerable and weaker, the consequences can be dramatic. That's why caring for an elderly person at home is a good way to make sure they eat healthy and safe.
Answer:
Different ecosystems have different levels of consumers, all end with one top consumer. Most energy is stored in plants and oxygen, and as the consumers eat these plants they take up a small amount of energy. This energy in the herbivores and omnivores is then consumed by carnivores.
They have a double- bonded oxygen in different locations.