About 1.2 billion years ago, eukaryotic and multicelled organisms evolved because oxygen became available from cyanobacteria banded iron formations developed meteorite impacts increased the atmosphere got thicker from volcanic outgassing

Many state and local authorities are making laws regarding recreation on lakes, rivers, and oceans to reduce water pollution. why would lawmakers need to consult with scientists before making these laws? a) to make scientists feel important b) so that the laws reduce pollution by a sufficient amount c) so that parks and lakefront facilities will still make large profits d) so that the public will believe that the laws are important to follow

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?