Theres a character minimum smh but i think its d pls check though g00gle is fr33
. I think that bivalves have evolved to have smaller head regions because they have also evolved to have bigger shells or valves than cephalopod
Episodic Memory!
Episodic memory includes personal information on what happened and where.
Hope this helps!
The main reason for the difference in the mass extinction occurring today and previously is the pace of the current extinction. The extinction is taking place globally and involves hundreds of species at the same time. In less than 50 years, we have lost numerous species. In contrast to this, previously during the mass extinction, only a few species were lost, and other managed to survive. But, not the status is opposite due to the magnitude of the extinction.
I believe its D. It becomes more difficult for the cell to get enough oxygen and nutrients.