Just 1 acre of tropical forest can contain how many different kinds of
butterflies?

cancer   is   essentially   uncontrolled   mitosis   of specialized cells

post-impressionism is a predominantly french art movement that developed roughly between 1886 and 1905, from the last impressionist exhibition to the birth of fauvism. post-impressionism emerged as a reaction against impressionists' concern for the naturalistic depiction of light and colour.

explanation:

the  frequency of a wave represents  the number of wavelengths that pass a specific point per second. the unit for  frequency  is hertz (hz).

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pls mark as brainliest

allowed for the prediction of the properties of missing elements.