Answer:
The smallest basic unit of living things. They vary in shape, appearance and size depending on the type of organism and the function of those cells. The smallest cell, Mycoplasma or PPLO (Pleuropneumonia - like organism), is about 0.1 - 0.25 m in size.
Explanation:
Answer:Exercise and Heart Rate
To achieve both weight loss and increase your fitness, it's best to exercise 45 to 60 minutes 5 times per week. If you are a man, you can find your recommended maximum (or target) heart rate range for exercise by subtracting your age from the number 220.
