The answer is the spinal cord starts at the occipital
bone where it passes over the foramen
magnum, and encounters and go in the spinal
canal at the start of the cervical vertebrae. The spinal cord encompasses
down to amid the first and second lumbar
vertebrae where the spinal cord ends.
Answer: the first one
Explanation: the rest are very wasteful :)
Answer:
Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface. Permeable walls - allow gases to pass through. Extensive blood supply - ensuring oxygen rich blood is taken away from the lungs and carbon dioxide rich blood is taken to the lungs.
Answer:Prophase
Explanation: Prophase is when chromosomes are made and the nuclear membrane breaks it down and later into the appearance of spindle fibers.
Answer: It is important that we use our natural resources so that we use any bad things for our earth
Explanation:
