Question

One of the major transitions that we see tied to the movement of the continents, climatic changes, and a series of evolutionary events is the appearance of the first terrestrial vertebrates. Which of these correctly matches a challenge terrestrial vertebrates faced with the solution? Oxygen availability is lower in the terrestrial realm and the evolution of lungs increases surface area to overcome this. Temperature variation decreases and so endothermy evolves as a result, Gravity has a much larger impact and so novel circulatory systems evolve that allow increased blood pressure. Water availability decreases and so the lateral line system evolves to increase electroreception.

Answer 1

1. b Temperature variations decreases and so endothermy evolves as a result. Vertebrates learn to change their body temperature according to needs and weather conditions by altering their metabolic rate. These animals are also called warm-blooded animals or homeotherms.