The weaver birds from the african savanna exhibit a trade-off between risking starvation and being hunted by predators. as a result the birds that are of medium weight have the selective advantage and make up the majority of the population. which type of natural selection is at work here?

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

Anormal appearing couple is found to be heterozygous recessive for albinism both have the genotype aa the gene responsible for albinism is recessive to the normal pigment-producing gene what are the changes of their children being albino

Which type of stimulus do mechanoreceptors detect? sound pain heat light