When an inhibitory message reaches the dendrites of a neuron, the cell becomes and the likelihood that a nerve impulse will occur is

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

What is the primary function of the nervous system?

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.