Archaebacteria is the answer I'm pretty sure you are looking for. anybody correct me if I'm wrong
The answer is D since organism x has a n optimal temperature of 37 degrees Celsius and when organisms y enzyme gets incorporated with enzyme x it will increase enzyme’s x temperature therefore enzyme x will denature meaning it will unfold and it will loose its properties hence loosing its activity because its temperature has been altered.
1. formaldehyde
2. paradichlorobenzene
3. tobacco smoke
4. toronto smog
5. pesticides
