Final answer:
Intelligence is influenced by both genetics and the environment. Twin studies have shown a high degree of heritability in intelligence, but the environment also plays a role. Providing intellectual stimulation to children can enhance their intelligence levels.
Step-by-step explanation:
Intelligence is a complex trait that is influenced by both genetic and environmental factors. Twin studies have shown that there is a high degree of heritability in intelligence, meaning that a significant portion of the differences in intelligence between individuals can be attributed to genetics. However, it is important to note that the environment also plays a role in shaping intelligence. For example, providing intellectual stimulation to children from an early age can enhance their intelligence levels.