Answer:
I'm pretty sure its the 1st one!
Explanation:
Dna are used to make chromosones, which are then uesd to make genes!
Hoped this helped!
Answer:
both are correct!!
Explanation:
Carbon dioxide plays an important part in vital plant and animal process, such as photosynthesis and respiration. ... Plants and animals, in turn, convert the food compounds by combining it with oxygen to release energy for growth and other life activities. This is the respiration process, the reverse of photosynthesis.