reproductive system
respiratory system
circulatory system
excretory system
Explanation
Video Explanation
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Discussions (16)
The correct answer is excretory system which is option D. @Myschool please correct it
It's obvious the answer is d..the explanation also made it clear.i think #myschool mistakely entered "c" as the answer
you are totally wrong its alleles
the alleles for blood are A B O
not chromosomes
The answer is meant to be excretory system but this app says it's circulatory system
Thank you all for your contributions. Following the explanation provided, the correct answer is option D.
myschool please make a research on this nephridia in the earthworm
i think it should be for osmoregulation
It should be allele, discontinuous character, like a hundred persons with different heights meaning they all have different genes for height which is called "allele"
