1. Plant and Animal Cells
All living things are made of tiny structures called cells. Most cells are too small to be seen with the naked eye.
The Structure of Animal Cells:
Cell wall
Cell membrane
Cytoplasm
Nucleus with chromosomes
The Structure of Plant Cells:
Plant cells contain the same parts as animal cells, but they also have:
Large vacuole with cell sap
Chloroplast with chlorophyll
Protozoa:
Organisms made of a single cell, like an animal cell.
Amoebae are protozoa that crawl around on surfaces of mud and leaves in ponds.
They feed by flowing around organisms even smaller than themselves.
They digest the organisms inside their cell