Final answer:
The correct order of the next steps after streaking the first quadrant (streak a) is: open the lid, flame the loop, streak the second quadrant (streak b), and close the lid.
Step-by-step explanation:
The correct order of the next steps after streaking the first quadrant (streak a) is as follows:
- Open the lid of the plate.
- Flame the loop to sterilize it.
- Streak the second quadrant (streak b).
- Close the lid of the plate.