<span>No, if new evidence is acquired or new perspectives emerge, scientific ideas can be revised or replaced;</span> as new ideas are introduced, scientists rethink and experiment to prove the hypotheses, and if the evidence is proven true many times, scientific ideas are revised, but not eliminated completely. So science can never be completely true, the ideas are just theories humans try to prove to examine how the universe works.
for this answer, I would like to say B!
It is 0%. They only have the recessive alleles (ss) so there is no possibility it can ever produce a gamete with a dominant allele (S). For example, if it was Ss it would be 50%, and for SS it would be 100%.
<span>The answer is one in four plants had two alleles for the recessive trait. In the F1 generation of Mendel cross, all of the offspring will be heterozygous. After two heterozygotes cross, in the F2 generation, one in 4 plants will have two alleles for the recessive trait, one in 4 plants two alleles for the dominant trait, and 2 in 4 plants will be heterozygotes.</span>
Answer: it is A.
Explanation: because they are both about the birds bones and birds need to fly if they don't have bones they can not fly