Central Nervous System<span> (CNS = spinal cord in the vertebral column ["backbone"] and brain in the skull)</span>
I would say that the answer to this question is most likely B or D.
Answer:Extra carbon dioxide in the atmosphere increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally. This increase in the Earth's temperature is called global warming .
Explanation:
That’d be D. TT and tt
This cross would give all heterozygote offsprings.