Identify the visible and nonvisible parts of the electromagnetic spectrum.

The visible light spectrum is a fractional part of the electromagnetic spectrum, which is visible due to our eyes, which are light receptors. Invisible spectrum are things like UV spectrum which falls outside the human visible range. Visible light waves are the only electromagnetic waves we can see. Its on the spectrum because it travels in electromagnetic waves.

Explanation:

which are post-impressionist paintings? check all that apply?

explanation:

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 color.

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the answer is d. chordata