There were many challenges that vertebrates had to overcome in order for them to colonize land habitats. Three of the most challenging tasks that vertebrates had was to learn how to eat the food on the land to sustain their energy and nutritional needs, how to breath, and how to defend themselves against predators.
how did the teacher overcome the challenges in the preparation of syllabus
If you were to ask NASA how space challenges might be overcome, they would undoubtedly tell you that the answer is more funding. Fund the research and the challenges will be overcome.
Nazism
They summoned power from their ancestors. The power of the Japanese heritage can overcome most challenges that a mortal man can face.
They jump over them.
mosty drugs
yes
The paperwork and Information Technology challenges.
Mostly by jumping.
Extremes of temperature
he retired from the NFL
polio