What might be a use for fluorescence in situ hybridization (fish)?
a. for identification of a specific gene in a dna extraction by hybridization to a dna probe
b. for identification of a specific gene by hybridization to a dna probe within live cells that have had their dna denatured by heat
c. for identification of an mrna within an rna extraction by hybridization to a dna probe
d. for identification of both mrna and dna in cellular extracts using an rna probe
e. none of the above

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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enzyme speed up the reactions

flooding wildfire landslides climate change the factors listed have an immediate effect on the animal populations found in any habitat. the four factors would lead to a death. b emigration. eliminate c immigration. d mutations.

increases the risk of extinction 

explanation:

the answer is that if the species suffers from the disease, there is nothing stronger than the others, so it is possible to remove wholeness. an example of this is hunger in irish potatoes, which has a deadly disease bearish part of all potato harvest masses. pretty much ruins the land of crops.