<span>The answers are visual spectrum and pupil. The visible light spectrum is a narrow band of frequencies ranging from 390 to 780 wavelengths long. These wavelengths are detectable by the eye and the different length corresponds to different colors.
The pupil determines how much light can enter the eye. It dilates and constricts depending on the amount of light available.</span>
Answer: The environment might affect the population, because there might be more predators in one area compared to another
Yes they can be seen using a light microscope.... hope this helps! :)
<span>Allele frequency is a factor within a population that can be studied in order to determine whether or not a population is evolving. Alleles are one of two or more ways in which a particular gene can be expressed. One can measure this expression in a population and measure its frequency to measure whether or not the population is evolving.</span>
defends body against infections so probobly secreting enzymes
