Sperm can survive 15-30 minutes on skin or surfaces. Temperature and moisture affect sperm survival rate. Sperm becomes dead once semen dries. Chances of pregnancy are extremely low
Goats produce about 2% of world's annual milk supply. Dairy goats produce 2.7-3.6 kg milk daily during 10-month lactation. Milk contains 3.5% butterfat and has naturally small fat globules
Puberty typically begins between ages 8 and 13. Breast buds start forming under nipples around age 8-12. Estrogen triggers fat collection in chest area around age 10. Breast development continues until around 17-18 years old
Heart rate can be calculated from ECG by measuring RR interval between R wave peaks. Ruler or caliper can be used to measure distance between R wave peaks. ECG paper speed is typically 25 mm/s (sometimes 50 mm/s). Normal adult resting heart rate is between 60-100 beats per minute
Proper bra fit is more important than size. Measure breasts at two points: band and cup. Bra should fit smoothly without gaps or wrinkles. Straps should not dig into shoulders. Underwires should not pinch skin
Average male height is 5 feet 8 inches. Weight ranges from 174.6 to 201.7 pounds. Body fat percentage averages 28.1%. Body weight distribution: 47% trunk/neck, 34% legs, 12% arms, 7% head. Body contains 60% water