Answer:
Exons because they are coding sequences
Explanation:
The sections of DNA (or RNA) that code for proteins are called exons.
Answer:
Photosynthesis removes CO2 from the atmosphere and replaces it with oxygen.
Explanation:
Photosynthesis removes CO2 from the atmosphere and replaces it with oxygen. By respiration, O2 is removed from the atmosphere and replaced with CO2. However, these processes are not balanced. Some organic matter is not oxidized. (I'm very sorry if I'm wrong but I believe it's that)
I believe the answer is b sorry if I’m wrong
Heterotrophs depend on photosynthesis as a source of oxygen