2007-10-18 09:50:17 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Zoology
fertility cycle
2007-10-18 09:53:31 · answer #1 · answered by tanzer360 5 · 1⤊ 0⤋
- Some offspring are produced unfertile.
- It causes an uneven pattern in breeding migration (birds)
- The results are that if something reproduces alone (e.g - liverworts/moss plants) then the chances of survival are limited.
- It may cause species to become less produced thus more likelly to become exctinct or have low numbers and in need of more preservement or breeding to keep numbers up.
2007-10-18 09:56:44 · answer #2 · answered by Anonymous · 0⤊ 0⤋
because you could be mating with the same sex and that wont work you need both reproductive parts male and female and then they both need to be fertile and then they both need to be well ready to reproduce
2007-10-18 09:54:14 · answer #3 · answered by Loki 2 · 1⤊ 0⤋
* Fertilization may not take place
* The female may not survive to complete the cycle
* The young may not survive to maturity
2007-10-18 10:06:13 · answer #4 · answered by Irv S 7 · 0⤊ 0⤋
because the female must be ovulating at the time so there is an egg for the sperm to fertilize.
2007-10-18 09:53:16 · answer #5 · answered by mixturenumber1 4 · 1⤊ 0⤋
You hand sometimes does not want to cooperate
2007-10-18 09:53:23 · answer #6 · answered by Anonymous · 0⤊ 0⤋
its good excersize but doesnt get the job done!!
2007-10-18 09:53:06 · answer #7 · answered by bryce m 2 · 0⤊ 0⤋
Some people are infertile....
2007-10-18 09:52:29 · answer #8 · answered by leaptad 6 · 0⤊ 0⤋