Environments are always changing so organisms need to adapt to survive. The organisms that survive are the ones that are fit to live in that environment, which is where survival of the fittest comes into play.
Answer: Closed
Explanation:
At resting membrane potential( RMP) sodium channels remained shut, this is because , previously in depolarisation,the voltage gated sodium channels were opened for sodium to diffuse into the Axon. However these channels closed after reaching their refractory period,s.
Therefore a change in the extracellular concentration of sodium will not open them
Answer: bedrock composition and climate
Explanation:
Yes chromosomes, centromeres are the center of the cell chromatids are two identical parts and the chromosome are the coiled dna
Going to high power on a microscope decreases the area of the field of view. The field of view is inversely proportional to the magnification of the objective lens.
