Plants: haploid generation of a plant produces gametes (sperm and eggs) and is called the gametophyte; the diploid generation produces spores and is called the sporophyte/ diploid zygote.
1 You gain the most benefits and lessen the risks when you exercise in your target heart rate zone. 2  Usually this is when your exercise heart rate (pulse) is 60 to 80 percent of your maximum heart rate. 3  In some cases, your health care provider may decrease your target heart rate zone to begin with 50 percent.
A normal resting heart rate should be between 60 and 100 beats per minute. A rate of more than 90 is, however, considered high. 1  The resting heart rate of well trained endurance athletes can be between 40 and 60 beats per minute. 2  Test your rate over a few days to get an average.onitor your heart rate during exercise. To keep track of your heart rate during exercise just take your pulse or your wrist or neck. Count for fifteen seconds and multiply the number by four. When you are exercising you want to keep your heart rate between 50% and 85% of your maximum.