1 . An individual is a single living thing ? True or False ?
2.Members of the same population rarely interact with each other ? True or False ?
3.The biotic component of a biome is a community? True or False ?
4.An ecosystem includes only biotic factors. True or False ?
5.The biosphere includes all the other levels of organization in ecology. True or False ?

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins

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Whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.