I need advice with good/creative ideas on how to create an animal cell in power point. Is there any site with templates, because I need to add 10...

I think one creative thing that you could do is overlay
the various animal cells over the part of the animal's body where the cell would be
found.

For example, take an image of an animal muscle cell
and place it over the muscle structure of a gorilla or lion. Adding to this, you could
address the difference between procaryotic and eucaryotic cells.

As for PowerPoint templates related to animals, a good
site to check is tagged below.

This
site offers great scientific centered templates.

Given that
there are multiple images of animal cells on the Internet, you would not need to create
an actual image for your presentation. Instead, copy an image from the web and be
creative with placement and presentation (like exampled above).