B . I am very experienced with child birth because i have seen many people give birth. at least 12 people and one of them had 5 that ive seen.
DNA helicase breaks it down into separate strands
Sensory neurons receive impulses and carry them from the sense organs to the spinal cord or brain. Interneurons connect sensory and motor neurons and interpret the impulse. Motor neurons carry impulses from the brain and spinal cord to muscles or glands.
I’m pretty sure it’s D, it has become warmer unless it’s talking about the sea ice (the sea ice has grown smaller but the Arctic itself has not). Hope this helps!