It would be C - dinoflagellates. have a great day!! :)
I am pretty sure that it is the second one
Explanation:
I believe it is the second one because cetaceans are mammals. I really hope that this is right I apologize if it is not.
Through nutrients absorbed through the soil and their roots.
During an avalanche the potential energy of the snow on the mountain is converted into kinetic as the snow rushes downward.
Part 1 a niche is a comfortable position in life or employment. part 2 a shallow recess, especially one in a wall to display a statue or other ornament. or a hole