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dem82 [27]
3 years ago
6

How old do birds have to be to reproduce ?

Biology
1 answer:
Katena32 [7]3 years ago
8 0
Birds reproduce sexually by mating and then depositing shelled eggs, which they incubate, hatch and rear. Birds produce sperm and egg cells just as mammals do, but most male birds lack a copulatory organ. Instead, birds mate through a process known as a “cloacal kiss.”
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6 0
3 years ago
Read 2 more answers
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KengaRu [80]
Phat1 = 9/142
Phat 2 = 5/268
Phat 3 14/410
Test statistics = (Phat 1 - Phat 2) / (Square root of (phat × (1- phat))
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At the level of significance, there is difference between the proportion of drug-resistant wihtin the two states.
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