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.
The recovery heart rate is the measure of how long it takes your heart to return to normal following exercise. To measure this, take your heart rate at the end of your workout and then again two minutes post workout. A normal recovery rate shows a decrease of 15 to 25 beats per minute.