I think all of the above...
because I know they built aqueducts and sewers, so since 2 of they are correct, then all 3 must be.
Your heart rate before exercising would probably be the at rest rate of say about 50-60 beats per minute whereas immediately after exercise it could easily be say 115-130 and depending on age there is an optimum heart rate for each age range which decreases somewhat with age. Timing for a full minute your heart rate is best as it will give the actual count whereas if you just do it for 10 seconds and then multply by 6 it would assume it will be consistent whereas it could decrease during the minute so the actual measured count for a full minute is more accurate.
Answer:
Yes, they are secondary consumers, who sometimes eat phytoplankton
Explanation:
Answer:
The meaning of force? or gravity pulling the object towards the Earth.
