Answer:After a primary oocyte completes the first meiotic division, it is called a secondary oocyte (1N). In most species Meiosis I is completed just before ovulation (release of the ovum from the ovary). However, in horses and dogs Meiosis I is completed after ovulation.
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Answer:
What factors contribute to longer life expectancy?
Significant factors in life expectancy include gender, genetics, access to health care, hygiene, diet and nutrition, exercise, lifestyle, and crime rates. Evidence-based studies indicate that longevity is based on two major factors, genetics and lifestyle choices.
Explanation:
This is the site I got my info from:
Longevity: Extending Life Span Expectancy : Disabled World
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