Answer: The correct option is B. Vertebrates appeared in the oceans before they moved on to land.
Vertebrate paleontology involves study of fossils of the vertebrates starting from the earliest fishes to the ancestors of modern day mammals. The spreading up of life from water to land needed modifications and adaptations such as protection from drying and support against the gravity. The tetrapod vertebrates evolved and started to live on land from oceans during the Devonian period. The succession of the Devonian period showed fossil evidences towards terrestrialization
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Answer:
All of the options are correct.
It’s either A or D depending on which side has a higher concentration of that molecule. If outside concentration is higher it will go from outside to inside. And if inside concentration is higher from inside to outside.
I believe the somatic motor association area is responsible for the coordination of the learned motor responses. The somatic motor association area is also the motor cortex which is a region of the cerebral cortex that helps in planning control and execution of voluntary functions among other functions.
Because it is an Independent reaction where it is not dependant on solar energy
