| fertility rate |
the average number of children born to mothers during their reproductive life. A fertility rate of 2.1 (the replacement rate ) is considered the minimum fertility rate to maintain a population in more advanced countries today. The excess over 2.0 accounts for early deaths. (Contrast BIRTH RATE)
출처: www.naiadonline.ca/book/01Glossary.htm
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| fertilization |
the process of the egg joining together with the sperm.
출처: www.cyclessa.com/global/glossary.asp
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| fertility |
The soils ability to supply enough nutrients, water and air for healthy plant growth. A fertile soil will have at least 5% organic matter and humus in it, and be crumbly.
출처: www.ottawa.ca/residents/healthy_lawns/lawns/links/...
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| fertility |
ability to produce children. This term is often used in a comparative sense, with an increase in fertility referring in an increase in number of children. Fertility rate refers to the number of live births occurring in a year per 1000 women (of child bearing age).
출처: www.bhs.k12.nj.us/coltech/glossary.html
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| fertilization |
Fusion of egg and sperm.
출처: www2.ncsu.edu/unity/lockers/project/dendrology/etc...
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