Which statements accurately describe long-term environmental changes? check all that apply.
long-term environmental changes cause changes in genetic makeup.
long-term environmental changes happen suddenly with little warning.
long-term environmental changes occur in thousands to billions of years.
long-term environmental changes affect organisms over several generations.
long-term environmental changes immediately affect organisms in the environment.

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

hope this   and an i get brainlsiest

answer: blah

explanation:

bc blah

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.