QUESTION:Which of the following can typically decrease genetic variation?
toxins
predator-prey relationships
competition
new habitat
disasters
increased food supply
ANSWER:
1. toxins
2.predator- prey relationships
3.competition
4.new habitats
5. disasters
They appear larger than they really are.
Answer:It is called The Foramen Magnum
Explanation: It is a large oval opening linking the Spinal cord and the Brain
Hope this helps : )