Do all animals have eukaryotic cells

Plants and animals have eukaryotic cells. Plant and animal cells, like all eukaryotic cells, are divided into two main compartments. The nucleus, usually the largest organelle, is the compartment that stores the instructions a cell needs to function.

Animals have Eukaryotic Cells, so Yes all Animals have Eukaryotic Cells.

That as you increase in trophic level 1/10th of the nutrients is lost. Starting at the consumers (plants) all the way to humans.