The three evolutionary innovations that addressed these challenges were lungs, better limb support, and the amniotic egg.
Explanation:
Due to an air environment with a high gravity force and lack of humidity reptiles had to adapt to the new conditions with the presence of lungs that allow them to use the oxygen in the air environment to survive, as well as better limb support that helped them to move from one place to another against the gravity force and amniotic eggs that allows them to grow in an environment where they have the necessary nutrients and protection when they are still not ready for the air environment and its gravity force.
DNA is located in the nucleus, but can also be found in other cell structures called mitochondria. Since the nucleus is so small, the DNA needs to be tightly packaged into bundles known as chromosomes.
Generalist predators. Generalist predators have, by definition, several alternative prey species between which they may 'switch', depending on which prey species are currently most abundant.
