B because I’m pretty sure only whales and dolphins have blowholes
I will leave your question unanswered. Thanks for the points I stole from you!
Answer:
They can crowd out our native species
Explanation:
These invasive species can cause native species to become extinct and/or endangered
<span>Cohesin holds the sister chromatids together after DNA replication, and removal of cohesin leads to separation of the sister chromatids.
Securin is part of the metaphase-anaphase transition and anaphase onset and is required to ensure that separase is folded properly.
Since Securin must be degraded for anaphase and the subsequence degradation of cohesin to occur, it must be dephosphorylated just prior to anaphase.</span>