Which aspect is particularly noted in children with Down syndrome?

The choice highlighting impairment of cognitive ability and growth in children with Down syndrome accurately reflects the characteristics associated with the condition. Down syndrome, also known as Trisomy 21, is often marked by a variety of developmental challenges, including cognitive impairment. While cognitive abilities can vary widely among individuals with Down syndrome, many exhibit some level of intellectual disability which impacts their learning and developmental growth.

These cognitive challenges can influence various aspects of a child's life, from their ability to communicate effectively to their problem-solving skills. Additionally, down syndrome may present with delays in physical growth, further emphasizing the importance of understanding the specific needs of these children in both educational and developmental contexts.

Uniform facial characteristics, although often an observable trait among individuals with Down syndrome, are not as impactful on their cognitive development and growth as the impairments noted. Thus, acknowledging the cognitive and growth aspects provides a more comprehensive understanding of the developmental considerations for children with this condition.