These group of cells represent different

a. organelles that carry out different functions
b. tissues in which similar cells function together
c. organs that to carry out a specific life activity
d. systems that are responsible for a specific life activity

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Actual age your first developed of age well comparison age refers to absolute age true or false

14) 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.

This is a biological reaction due to a stimulus. i need this quickly !