Those with Heightened Levels of __________ Have a Better Chance

question 45

Multiple Choice

Those with heightened levels of __________ have a better chance of passing on their genes to later generations.

• A)adaptations
• B)phenotypes
• C)genotypes
• D)fitness

---

Definitions:

Thoracic Aorta

The portion of the aorta passing through the chest, from which arise the branches that supply oxygenated blood to the chest cage and organs within the thorax.

Abdominal Aorta

The main artery that runs down the abdomen and supplies blood to the organs and tissues of the abdomen.

Aortic Arch

The portion of the main artery that bends between the ascending and descending aorta, distributing blood to the head, neck, and arms.

Capillaries

Capillaries are the smallest blood vessels in the body, connecting arterioles and venules, and are responsible for the exchange of oxygen, carbon dioxide, and other nutrients and waste products between blood and tissues.