The diagram shows the heart of a bird. What is the function of the structure labeled Y?

to keep oxygen-rich blood and oxygen-poor blood flowing
to filter waste materials from oxygen-poor blood
to filter waste materials from oxygen-rich blood
to keep oxygen-rich blood and oxygen-poor blood separate

to keep oxygen-rich blood and oxygen-poor blood flowing

Explanation:

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.

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the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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