What is the term for the group of organisms (often bacteria and fungi) that is present in all cycles and keeps matter cycling between organic and inorganic parts of the
earth's systems?

Can happen anywhere along the spine if the neural tube does not close all the way. the backbone that protects the spinal cord does not form and close as it should. this often results in damage to the spinal cord and nerves. a) cleft palate b) spina bifida c) encephalocele d) down's syndrome

What’s a example of extrusive rock that cooled to quickly for grains to form

Can someone me i need the answer and don’t understand?