x Domains and Kingdoms

Strange organisms
-Classifying is not easy
-some plants can eat another organisms to obtain nutrients
-some protists can use photosynthesis as plants do and can move as animals do
-kingdom Animalia includes worms, insects and corals
-sponges considered simplest animals they lack sense organs, and most of them cannot move
scientist used to classify they as plants, but they cannot do their own food
they must eat another organisms to get nutrients, which is one reason that sponges are classified as animals.

Archaea

Prokaryote

single celled that dont have nucleus

lives in extremes environment

Bacteria

Prokaryote

Subtopic

Found in soil, water, human body

Useful

Escherichia coli produce vitamin K in human intestines

harmful

Pneumonia: Lung infection

Eukarya

Eukaryotes

-Have nucleus
-Membrane-bound organelles